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Special Issue on: Optical Wireless Communications for Emerging Connectivity Requirements IEEE Open J. Commun. Soc. Pub Date : 2021-01-20 Mohammad Ali Khalighi; Zabih Ghassemlooy; Mohamed-Slim Alouini; Steve Hranilovic; Stanislav Zvanovec
The Increasing number of smart devices in different forms and capabilities combined with the worldwide adoption of advanced multimedia applications are contributing to the significant growth of the mobile data traffic. The fifth generation (5G) and beyond-5G wireless networks aim at providing wireless connectivity with very high data rates, low latency, high reliability, and scalability, and will support
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Intelligent Surface-Aided Transmitter Architectures for Millimeter-Wave Ultra Massive MIMO Systems IEEE Open J. Commun. Soc. Pub Date : 2020-12-29 Vahid Jamali; Antonia M. Tulino; Georg Fischer; Ralf R. Müller; Robert Schober
In this article, we study two novel massive multiple-input multiple-output (MIMO) transmitter architectures for millimeter wave (mmWave) communications which comprise few active antennas, each equipped with a dedicated radio frequency (RF) chain, that illuminate a nearby large intelligent reflecting/transmitting surface (IRS/ITS). The IRS (ITS) consists of a large number of low-cost and energy-efficient
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Performance Analysis of Indoor Communication System Using Off-the-Shelf LEDs With Human Blockages IEEE Open J. Commun. Soc. Pub Date : 2021-01-06 Anand Singh; Gourab Ghatak; Anand Srivastava; Vivek Ashok Bohara; Anand Kumar Jagadeesan
This article uses a stochastic geometry model-based approach to analyze the downlink performance of an indoor visible light communication (VLC) system with human blockages. The system performance is analyzed for a regular placement of light emitting diodes (LEDs) in a rectangular configuration. The proposed analysis is divided into two parts. In the first part, it is assumed that human blockages are
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Efficient Downlink Power Allocation Algorithms for Cell-Free Massive MIMO Systems IEEE Open J. Commun. Soc. Pub Date : 2020-12-14 Sucharita Chakraborty; Özlem Tuğfe Demir; Emil Björnson; Pontus Giselsson
Cell-free Massive MIMO systems consist of a large number of geographically distributed access points (APs) that serve the users by coherent joint transmission. The spectral efficiency (SE) achieved by each user depends on the power allocation: which APs that transmit to which users and with what power. In this article, we revisit the max-min and sum-SE power allocation policies, which have previously
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Special Issue on Edge Intelligence for Immersive Communications IEEE Open J. Commun. Soc. Pub Date : 2021-01-13 Zheng Chang; Geyong Min; Xiaojiang Du; Zhiwei Zhao; Di Zhang
With the explosive growth of smart devices and development of wireless technology, numerous new applications such as Augmented Reality (AR), Virtual Reality (VR), Mixed Reality (MR), autonomous driving and intelligent manufactory enter our daily life and put stringent requirements on the current communications technologies. Boosted by multimedia applications and Internetof-Things (IoT), immersive communications
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KeyShield: A Scalable and Quantum-Safe Key Management Scheme IEEE Open J. Commun. Soc. Pub Date : 2020-12-21 Mohammed Y. Al-darwbi; Ali A. Ghorbani; Arash Habibi Lashkari
While encryption is powerful at protecting information, it critically relies upon the mystery/private cryptographic key’s security. Poor key management would compromise any robust encryption algorithm. In this way, securing information is reduced to the issue of securing such keys from unauthorized access. In this work, KeyShield is proposed, a scalable and quantum-safe key management scheme. KeyShield
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Adaptive Intrusion Detection in the Networking of Large-Scale LANs With Segmented Federated Learning IEEE Open J. Commun. Soc. Pub Date : 2020-12-16 Yuwei Sun; Hiroshi Esaki; Hideya Ochiai
Predominant network intrusion detection systems (NIDS) aim to identify malicious traffic patterns based on a handcrafted dataset of rules. Recently, the application of machine learning in NIDS helps alleviate the enormous effort of human observation. Federated learning (FL) is a collaborative learning scheme concerning distributed data. Instead of sharing raw data, it allows a participant to share
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Rapid Prototyping and Validation of FS-FBMC Dynamic Spectrum Radio With Simulink and ZynqSDR IEEE Open J. Commun. Soc. Pub Date : 2020-11-25 Kenneth W. Barlee; Robert W. Stewart; Louise H. Crockett; Neil C. MacEwen
This article presents the research carried out in developing and targeting a novel real-time Dynamic Spectrum Access (DSA) Frequency Spread Filter Bank Multicarrier (FS-FBMC) transmitter prototype to programmable ‘ZynqSDR’ Software Defined Radio (SDR) hardware, and introduces a series of experiments used to validate the design’s ‘cognitive’ DSA capabilities. This transmitter is a proof of concept,
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Applying Deep-Learning-Based Computer Vision to Wireless Communications: Methodologies, Opportunities, and Challenges IEEE Open J. Commun. Soc. Pub Date : 2020-12-23 Yu Tian; Gaofeng Pan; Mohamed-Slim Alouini
Deep learning (DL) has seen great success in the computer vision (CV) field, and related techniques have been used in security, healthcare, remote sensing, and many other areas. As a parallel development, visual data has become universal in daily life, easily generated by ubiquitous low-cost cameras. Therefore, exploring DL-based CV may yield useful information about objects, such as their number,
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Application-Based Coexistence of Different Waveforms on Non-Orthogonal Multiple Access IEEE Open J. Commun. Soc. Pub Date : 2020-12-15 Mehmet Mert Şahin; Hüseyin Arslan
In the study, the coexistence of different waveform structures on the same resource element is studied under the theory of non-orthogonal multiple access (NOMA). This study introduces a paradigm-shift on NOMA towards the application-centric waveform coexistence. Throughout this article, the coexistence of different waveforms is explained with two specific use cases, which are power-balanced NOMA and
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Novel Iterative Clipping and Error Filtering Methods for Efficient PAPR Reduction in 5G and Beyond IEEE Open J. Commun. Soc. Pub Date : 2020-12-09 Selahattin Gökceli; Toni Levanen; Taneli Riihonen; Juha Yli-Kaakinen; Alberto Brihuega; Matias Turunen; Markku Renfors; Mikko Valkama
The physical-layer radio access of 5G New Radio (NR) and other modern wireless networks builds on the cyclic prefix (CP) orthogonal frequency-division multiplexing (OFDM), known to suffer from the high peak-to-average power ratio (PAPR) challenge. In this article, novel PAPR reduction methods are developed, referred to as the iterative clipping and weighted error filtering (ICWEF) approach. To this
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Analytical Determination of Thresholds of LDPC Codes in Free Space Optical Channel IEEE Open J. Commun. Soc. Pub Date : 2020-11-26 Sonali; Abhishek Dixit; Virander Kumar Jain
Free-space optical (FSO) communication is crucial for the next-generation 5G+ wireless networks. The FSO links suffer from atmospheric-turbulence-induced bit errors. For the increasing link’s performance, low-density parity-check (LDPC) codes, complemented by the belief-propagation (BP) algorithm, are an excellent option. The bit error rate (BER) of the LDPC code is characterized by a parameter called
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Visible Light Communications via Intelligent Reflecting Surfaces: Metasurfaces vs Mirror Arrays IEEE Open J. Commun. Soc. Pub Date : 2020-12-02 Amr M. Abdelhady; Ahmed K. Sultan Salem; Osama Amin; Basem Shihada; Mohamed-Slim Alouini
We propose two types of intelligent reflecting systems based on programmable metasurfaces and mirrors to focus the incident optical power towards a visible light communication receiver. We derive the required phase gradients for the metasurface array reflector and the required orientations of each mirror in the mirrors array reflector to achieve power focusing. Based on which, we derive the irradiance
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A UAV-Enabled Wireless Powered Sensor Network Based on NOMA and Cooperative Relaying With Altitude Optimization IEEE Open J. Commun. Soc. Pub Date : 2020-12-03 Tianji Shen; Hideki Ochiai
Non-orthogonal multiple access (NOMA) is envisioned as a promising technology that enhances the spectrum efficiency for future cellular networks. On the other hand, there is a growing interest in wireless powered sensor networks toward the sustainable realization of Internet of Things (IoT), as they may not require any battery replacement in principle. Moreover, the use of unmanned aerial vehicle (UAV)
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Guest Editorial: Special Issue on Large-Scale Wireless-Powered Networks With Backscatter Communications IEEE Open J. Commun. Soc. Pub Date : 2020-12-21 Sami Muhaidat; Paschalis C. Sofotasios; Kaibin Huang; Muhammad Ali Imran; Zhiguo Ding; Naofal Al-Dhahir
The Proliferation of connected and embedded devices has played a critical role in the development of next generation Internet of Things (IoT), and consequently, the diffusion of low power networks. The sustainability of such networks entails energy aware devices that are capable of self-sustainable operations by harvesting and recycling energy from various sources. Accordingly, integration of wireless-powered
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Outage Performance of Pairwise NOMA Allowing a Dynamic Decoding Order and Optimal Pairs of Power Levels IEEE Open J. Commun. Soc. Pub Date : 2020-11-20 Van-Lan Dao; Le-Nam Hoang; Svetlana Girs; Elisabeth Uhlemann
In this article, we evaluate the overall outage probability (OOP) of pairwise Non-orthogonal Multiple Access (NOMA) for both uplink and downlink. We also propose a dynamic decoding order (DDO) together with a fixed pairwise power allocation (FPPA) scheme, in which the optimal decoding order is decided based on the instantaneous channel gains, and thereafter, a pair of power levels is assigned in accordance
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NOMA-Based Cooperative Relaying With Receive Diversity in Nakagami-m Fading Channels IEEE Open J. Commun. Soc. Pub Date : 2020-11-24 Vaibhav Kumar; Barry Cardiff; Mark F. Flanagan
Non-orthogonal multiple access (NOMA) is being widely considered as a potential candidate to enhance the spectrum utilization in beyond fifth-generation (B5G) communications. In this article, we derive closed-form expressions for the ergodic rate and outage probability of a multiple-antenna-assisted NOMA-based cooperative relaying system (CRS-NOMA). We present the performance analysis of the system
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Prediction of Network Traffic Through Light-Weight Machine Learning IEEE Open J. Commun. Soc. Pub Date : 2020-11-25 Yitu Wang; Takayuki Nakachi
The evolving nature of network traffic challenges existing learning-based models, as frequently re-training the hyper-parameters is required to adaptively learn and predict its behavior. Benefiting from discovering the sparsity and self-similarity of network traffic, it becomes possible to develop compact algorithms with high accuracy and low computational complexity. However, how to properly make
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The Challenges of Privacy and Access Control as Key Perspectives for the Future Electric Smart Grid IEEE Open J. Commun. Soc. Pub Date : 2020-11-11 Anna Triantafyllou; Jose Antonio Perez Jimenez; Alejandro Del Real Torres; Thomas Lagkas; Konstantinos Rantos; Panagiotis Sarigiannidis
The Electric Smart Grid (ESG) is referred to as the next generation electricity power network. The ESG is an intelligent critical infrastructure subject to various security vulnerabilities and especially data privacy breaches. This study presents a comprehensive overview of the latest privacy-preserving mechanisms and policies in the ESG, while promoting the employment of modern access control techniques
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Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications IEEE Open J. Commun. Soc. Pub Date : 2020-11-19 Roger Kwao Ahiadormey; Prince Anokye; Seok-Hwan Park; Kyoung-Jae Lee
In this article, we study the application of cooperative non-orthogonal multiple access (NOMA) in power line communication (PLC) where two users exchange information using a two-way relay (TWR). Under the assumption of perfect and imperfect successive interference cancellation (SIC), we analyze key performance metrics for PLC log-normal channels impaired by impulsive noise. In particular, for delay-limited
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Reconfigurable Intelligent Surfaces for Smart Cities: Research Challenges and Opportunities IEEE Open J. Commun. Soc. Pub Date : 2020-11-10 Steven Kisseleff; Wallace A. Martins; Hayder Al-Hraishawi; Symeon Chatzinotas; Björn Ottersten
The concept of Smart Cities has been introduced as a way to benefit from the digitization of various ecosystems at a city level. To support this concept, future communication networks need to be carefully designed with respect to the city infrastructure and utilization of resources. Recently, the idea of ‘smart’ environment, which takes advantage of the infrastructure in order to enable better performance
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SWIPT-Enabled Cooperative NOMA With mth Best Relay Selection IEEE Open J. Commun. Soc. Pub Date : 2020-11-16 Suyue Li; Lina Bariah; Sami Muhaidat; Paschalis C. Sofotasios; Jie Liang; Anhong Wang
Non-orthogonal multiple access (NOMA) was recently regarded as a potential technique for next generation wireless networks. Recent works on relay selection for cooperative NOMA systems have mainly addressed the best relay selection to forward its received signals to terminal nodes. Nonetheless, in practical scenarios, the best relay may be unavailable due to non-ideal conditions such as scheduling
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Energy-Constrained Uncoordinated Multiple Access for Next-Generation Networks IEEE Open J. Commun. Soc. Pub Date : 2020-11-02 F. Babich; G. Buttazzoni; F. Vatta; M. Comisso
This article analyzes the performance of a distributed joint power/packet diversity random access scheme in the presence of energy requirements. In particular, the two main approaches separately developed in the recent years for exploiting the Interference Cancellation (IC) capabilities of modern receivers, that is, Non-Orthogonal Multiple Access (NOMA) and Packet Repetition (PR), are firstly compared
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Performance Analysis of Piece-Wise Linear Model of Energy Harvesting-Based Multiuser Overlay Spectrum Sharing Networks IEEE Open J. Commun. Soc. Pub Date : 2020-11-16 Sourabh Solanki; Prabhat K. Upadhyay; Daniel Benevides Da Costa; Haiyang Ding; Jules M. Moualeu
In this article, we investigate the performance of a piece-wise linear model of energy harvesting-based multiuser overlay spectrum sharing system. Herein, an energy-constrained secondary node acts as a cooperative relay to assist the information transmission between a primary transmitter and multiple primary receivers. In return for the cooperation, the secondary node enjoys access to the primary user’s
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A Superficial Analysis Approach for Identifying Malicious Domain Names Generated by DGA Malware IEEE Open J. Commun. Soc. Pub Date : 2020-11-17 Akihiro Satoh; Yutaka Fukuda; Toyohiro Hayashi; Gen Kitagata
Some of the most serious security threats facing computer networks involve malware. To prevent malware-related damage, administrators must swiftly identify and remove the infected machines that may reside in their networks. However, many malware families have domain generation algorithms (DGAs) to avoid detection. A DGA is a technique in which the domain name is changed frequently to hide the callback
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A QoS-Demand-Aware Computing Resource Management Scheme in Cloud-RAN IEEE Open J. Commun. Soc. Pub Date : 2020-10-29 Mojgan Barahman; Luis M. Correia; Lúcio Studer Ferreira
This article focuses on computing resource allocation in Cloud Radio Access Networks. A game-based optimization algorithm was developed to distribute the computing resources among BaseBand Units (BBUs) in a BBU-pool whereby resources utilization is maximized. The model allocates computing resources on-demand, based on the instantaneous requests of BBUs, using a game-theory bargaining approach. In the
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Fast Big Data Analytics for Smart Meter Data IEEE Open J. Commun. Soc. Pub Date : 2020-11-17 Morteza Mohajeri; Abolfazl Ghassemi; T. Aaron Gulliver
A polar projection-based algorithm is proposed to reduce the computational complexity associated with dimension reduction in unsupervised learning. This algorithm employs $K$ -means clustering. A new distance metric is developed to account for peak consumption in cluster consumer load profiles. It is used to cluster the load profiles according to both total and peak consumption. To accelerate the clustering
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Optimization and Comparison of M-PAM and Optical OFDM Modulation for Optical Wireless Communication IEEE Open J. Commun. Soc. Pub Date : 2020-10-27 Shokoufeh Mardanikorani; Xiong Deng; Jean-Paul M. G. Linnartz
Illumination LEDs, but also infrared LEDs have limited bandwidth. To achieve high throughput, one needs to modulate the LED significantly above its 3 dB bandwidth. Orthogonal Frequency Division Multiplexing (OFDM) is a popular modulation technique to cope with the frequency selectivity of the LED channel. In this article, we challenge whether its large Peak-to-Average-Power Ratio (PAPR) and resulting
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Energy-Efficient Resource Allocation in Single-RF Load-Modulated Massive MIMO HetNets IEEE Open J. Commun. Soc. Pub Date : 2020-10-21 Mahtab Ataeeshojai; Robert C. Elliott; Witold A. Krzymień; Chintha Tellambura; Jordan Melzer
Due to the dramatic increase in wireless data traffic and the associated increase in energy consumption, designing energy-efficient wireless networks with improved spectral efficiency is a pressing concern. The focus of this article is the design of a green, highly energy-efficient cellular heterogeneous network (HetNet) by taking advantage of multiple-input-multiple-output (MIMO) structure and deployment
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Free-Space Optical MISO Communications With an Array of Detectors IEEE Open J. Commun. Soc. Pub Date : 2020-11-03 Muhammad Salman Bashir; Mohamed-Slim Alouini
Multiple-input multiple-output (MIMO) and multiple-input single-output (MISO) schemes have yielded promising results in free space optical (FSO) communications by providing diversity against fading of the received signal intensity. In this article, we have analyzed the probability of error performance of a muliple-input single-output (MISO) free-space optical channel that employs array(s) of detectors
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Constrained Channel Decomposition-Based Hybrid Beamforming for mmWave Massive MIMO Systems IEEE Open J. Commun. Soc. Pub Date : 2020-10-30 Guilherme Martignago Zilli; Wei-Ping Zhu
In this article, we propose a hybrid beamforming design for multiuser mmWave massive MIMO systems. We adopt a two-stage approach for designing the analog and digital beamforming separately. The analog beamforming design is based on a constrained low-rank channel decomposition and aims to simultaneously harvest the array gain and reduce the intra- and inter-user interference. The digital beamforming
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Asymptotic Performance Analysis of NOMA Uplink Networks Under Statistical QoS Delay Constraints IEEE Open J. Commun. Soc. Pub Date : 2020-10-16 Mouktar Bello; Arsenia Chorti; Inbar Fijalkow; Wenjuan Yu; Leila Musavian
In this article, we study the performance of an uplink non-orthogonal multiple access (NOMA) network under statistical quality of service (QoS) delay constraints, captured through each user’s effective capacity (EC). We first propose novel closed-form expressions for the EC in a two-user NOMA network and show that in the high signal-to-noise ratio (SNR) region, the “strong” NOMA user, referred to as
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Motion Prediction and Pre-Rendering at the Edge to Enable Ultra-Low Latency Mobile 6DoF Experiences IEEE Open J. Commun. Soc. Pub Date : 2020-10-21 Xueshi Hou; Sujit Dey
As virtual reality (VR) applications become popular, the desire to enable high-quality, lightweight, and mobile VR can potentially be achieved by performing the VR rendering and encoding computations at the edge and streaming the rendered video to the VR glasses. However, if the rendering has to be performed after the edge gets to know of the user’s new head and body position, the ultra-low latency
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Quantum Bacterial Foraging Optimization: From Theory to MIMO System Designs IEEE Open J. Commun. Soc. Pub Date : 2020-10-15 Fei Li; Wei Ji; Sijia Tan; Yuchen Xie; Xiangling Guo; Huaping Liu; Yudong Yao
This article develops a quantum bacterial foraging optimization (QBFO) algorithm, a quantum intelligence algorithm based on quantum computing and bacterial foraging optimization (BFO), with application in MIMO system optimization designs. In QBFO, a multiqubit is used to represent a bacterium, and a quantum rotation gate is used to mimic chemotaxis. Because the quantum bacterium with multiqubit has
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End-to-End Direct Digital Synthesis Simulation and Mathematical Model to Minimize Quantization Effects of Digital Signal Generation IEEE Open J. Commun. Soc. Pub Date : 2020-10-02 Pranav R. Patel; Richard K. Martin
Direct digital synthesis (DDS) architectures are becoming more prevalent as modern digital-to-analog converter (DAC) and programmable logic devices evolve to support higher bandwidths. The DDS architecture provides the benefit of digital control but at a cost of generating spurious content in the spectrum. The generated spurious content may cause intermodulation distortion preventing proper demodulation
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Detouring Skip Graph: Efficient Routing via Detour Routes on Skip Graph Topology IEEE Open J. Commun. Soc. Pub Date : 2020-10-08 Takeshi Kaneko; Ryohei Banno; Kazuyuki Shudo; Kota Abe; Yuuichi Teranishi
Skip graph is a distributed data structure that provides a scalable structured overlay network by routing in logarithmic time for resource location and dynamic node addition/deletion. However, most of the routing paths are quite longer than the shortest paths because each node in the network knows only its neighbors, rather than the global topology. In general, long routing paths lead to the high latency
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Implementation of Linearly Pulse Shaped Generalised Frequency Division Multiplexing for Visible Light Communication Systems IEEE Open J. Commun. Soc. Pub Date : 2020-10-12 Vejandla Kishore; Venkata Mani Vakamulla; Wasiu O. Popoola; Abhinav Kumar
In this article, a new modulation scheme named Direct Current biased Optical Generalised Frequency Division Multiplexing (DCO-GFDM) for Visible Light Communications (VLC) is explored. The DCO-GFDM enhances spectral efficiency by slicing both grids on the time-frequency plane and uses a circularly rotating filter for pulse shaping. In the Circular Pulse shaped DCO-GFDM (CP-DCO-GFDM), Root Raised Cosine
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Crosstalk Suppression in Structured Light Free-Space Optical Communication IEEE Open J. Commun. Soc. Pub Date : 2020-10-06 Dmitrii Briantcev; Abderrahmen Trichili; Boon S. Ooi; Mohamed-Slim Alouini
Using space as an additional degree of freedom is one possible solution to cope with future bandwidth issues. In free-space optics (FSO), spatial multiplexing of structured light modes is limited by the impact of the atmospheric turbulence. Therefore, beating the effects of turbulence is a major problem for structured light-based FSO communication. Here, we model the propagation of Laguerre-Gaussian
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On Optimizing Feedback-Rate Allocation for Downlink MIMO-NOMA With Quantized CSIT IEEE Open J. Commun. Soc. Pub Date : 2020-10-05 Kritsada Mamat; Wiroonsak Santipach
We consider multiple-input multiple output (MIMO) non-orthogonal multiple access (NOMA) downlink channels with zeroforcing beamforming transmission. The base station has multiple transmit antennas while all mobile devices have single receive antenna. With a limited feedback rate, channel direction information (CDI) needs to be quantized and fed back from mobile users to a base station. Thus, the accuracy
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Deep Chaos Synchronization IEEE Open J. Commun. Soc. Pub Date : 2020-10-05 Majid Mobini; Georges Kaddoum
In this study, we address the problem of chaotic synchronization over a noisy channel by introducing a novel Deep Chaos Synchronization (DCS) system using a Convolutional Neural Network (CNN). Conventional Deep Learning (DL) based communication strategies are extremely powerful but training on large data sets is usually a difficult and time-consuming procedure. To tackle this challenge, DCS does not
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Joint Power and Resource Block Allocation for Mixed-Numerology-Based 5G Downlink Under Imperfect CSI IEEE Open J. Commun. Soc. Pub Date : 2020-10-12 Praveen Kumar Korrai; Eva Lagunas; Ashok Bandi; Shree Krishna Sharma; Symeon Chatzinotas
Fifth-generation (5G) of wireless networks are expected to accommodate different services with contrasting quality of service (QoS) requirements within a common physical infrastructure in an efficient way. In this article, we address the radio access network (RAN) slicing problem and focus on the three 5G primary services, namely, enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications
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An Improved Switch Migration Decision Algorithm for SDN Load Balancing IEEE Open J. Commun. Soc. Pub Date : 2020-10-08 Oladipupo Adekoya; Adel Aneiba; Mohammad Patwary
Dynamic and Adaptive Load Balancing (DALB) and Controller Adaption and Migration Decision (CAMD) frameworks are the recently developed efficient controller selection frameworks that solved the challenge of load-imbalance in Software-Defined Networking (SDN). While CAMD framework was established to be efficient over DALB framework yet it was not efficient when the incoming-traffic load was elephant
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Physical Layer Security for Multiple-Input Multiple-Output Systems by Alternating Orthogonal Space-Time Block Codes IEEE Open J. Commun. Soc. Pub Date : 2020-09-23 Michael R. Cribbs; Ric A. Romero; Tri T. Ha
Algorithms are provided to build a large set of unique complex-valued orthogonal space-time block codes (STBCs) from a known or standard STBC. A physical layer security (PLS) scheme is proposed to take advantage of this set by alternating the STBC in use over a multiple-input single-output (MISO) or multiple-input multiple-output (MIMO) communications link between base station (BS) and user equipment
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TDMA Scheduling in Spatially Extended LiFi Networks IEEE Open J. Commun. Soc. Pub Date : 2020-09-24 Jona Beysens; Jean-Paul M. G. Linnartz; Dries Van Wageningen; Sofie Pollin
Optical Wireless Communication (OWC) has attracted significant attention from academia and industry as a promising solution to complement traditional radio frequency communication. In Light-Fidelity (LiFi) networks, to enable soft handover and provide robustness against blockage of the line-of-sight links, LiFi receivers are designed to see multiple LiFi transmitters within their field-of-view. To
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The Network Link Outlier Factor (NLOF) for Fault Localization IEEE Open J. Commun. Soc. Pub Date : 2020-09-23 Christopher Mendoza; Michael P. Mcgarry
We describe and experimentally evaluate the performance of our Network Link Outlier Factor (NLOF) for locating faults in communication networks. The NLOF is a unique outlier score assigned to each link in a network. It is computed using four distinct stages in a data analytics pipeline. The input to the pipeline are flow records (e.g., NetFlow) and network topology data (e.g., Link Layer Discovery
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Joint Channel and Antenna Modeling for Magnetic Induction Communication in Inhomogeneous Media IEEE Open J. Commun. Soc. Pub Date : 2020-09-25 Hongzhi Guo; Albert Aninagyei Ofori
Magnetic induction communication (MIC) demonstrates high penetration efficiency and low propagation loss in extreme environments. It is used in underground and underwater environments to enable critical applications that cannot be achieved by using terrestrial wireless techniques. This article studies the channel and antenna modeling for MIC in inhomogeneous environments, where a transmitter and a
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Weighted Sum-SINR and Fairness Optimization for SWIPT-Multigroup Multicasting Systems With Heterogeneous Users IEEE Open J. Commun. Soc. Pub Date : 2020-09-22 Sumit Gautam; Eva Lagunas; Shree Krishna Sharma; Symeon Chatzinotas; Björn Ottersten; Luc Vandendorpe
The development of next generation wireless communication systems focuses on the expansion of existing technologies, while ensuring an accord between various devices within a system. In this article, we target the aspect of precoder design for simultaneous wireless information and power transmission (SWIPT) in a multi-group (MG) multicasting (MC) framework capable of handling heterogeneous types of
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Unified User Association and Contract-Theoretic Resource Orchestration in NOMA Heterogeneous Wireless Networks IEEE Open J. Commun. Soc. Pub Date : 2020-09-21 Maria Diamanti; Georgios Fragkos; Eirini Eleni Tsiropoulou; Symeon Papavassiliou
Lately, the deployment of heterogeneous wireless networks has emerged, as part of the 5G vision, to cope with the users’ exaggerated service demands. In this context, the application of Non-Orthogonal Multiple Access (NOMA) technique constitutes a promising solution to facilitate a balance between spectral efficiency and system complexity. In this article, we consider the problem of joint user association
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Smart and Secure Wireless Communications via Reflecting Intelligent Surfaces: A Short Survey IEEE Open J. Commun. Soc. Pub Date : 2020-09-16 Abdullateef Almohamad; Anas M. Tahir; Ayman Al-Kababji; Haji M. Furqan; Tamer Khattab; Mazen O. Hasna; Hüseyin Arslan
With the emergence of the Internet of Things (IoT) technology, wireless connectivity should be more ubiquitous than ever. In fact, the availability of wireless connection everywhere comes with security threats that, unfortunately, cannot be handled by conventional cryptographic solutions alone, especially in heterogeneous and decentralized future wireless networks. In general, physical layer security
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Machine Learning Assisted Adaptive Index Modulation for mmWave Communications IEEE Open J. Commun. Soc. Pub Date : 2020-09-18 Haochen Liu; Siyao Lu; Mohammed El-Hajjar; Lie-Liang Yang
In this article, we propose an orthogonal frequency-division multiplexing system supported by the compressed sensing assisted index modulation, termed as (OFDM-CSIM), applied to millimeter-wave (mmWave) communications. In the OFDM-CSIM mmWave system, information is conveyed not only by the classic constellation symbols but also by the on/off status of subcarriers, where the size of constellation symbols
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Performance Analysis and Resource Allocations for a WPCN With a New Nonlinear Energy Harvester Model IEEE Open J. Commun. Soc. Pub Date : 2020-09-07 Danyang Wang; Fatemeh Rezaei; Chintha Tellambura
Wireless powered communication networks (WPCNs) are commonly analyzed by using the linear energy harvesting (EH) model. However, since practical EH circuits are non-linear, the use of the linear EH model gives rise to distortions and mismatches. To overcome these issues, we propose a more realistic, nonlinear EH model. The model is based upon the error function and has three parameters. Their values
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On Integrated Access and Backhaul Networks: Current Status and Potentials IEEE Open J. Commun. Soc. Pub Date : 2020-09-08 Charitha Madapatha; Behrooz Makki; Chao Fang; Oumer Teyeb; Erik Dahlman; Mohamed-Slim Alouini; Tommy Svensson
In this article, we introduce and study the potentials and challenges of integrated access and backhaul (IAB) as one of the promising techniques for evolving 5G networks. We study IAB networks from different perspectives. We summarize the recent Rel-16 as well as the upcoming Rel-17 3GPP discussions on IAB, and highlight the main IAB-specific agreements on different protocol layers. Also, concentrating
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Carrier Aggregation in Satellite Communications: Impact and Performance Study IEEE Open J. Commun. Soc. Pub Date : 2020-09-10 Mirza Golam Kibria; Eva Lagunas; Nicola Maturo; Hayder Al-Hraishawi; Symeon Chatzinotas
Carrier Aggregation (CA) is an integral part of current cellular networks. Its ability to enhance the peak data rate, to efficiently utilize the limited available spectrum resources and to satisfy the demand for data-hungry applications has drawn large attention from different wireless network communities. Given the benefits of CA in the terrestrial wireless environment, it is of great interest to
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Channel Estimation Techniques for Millimeter-Wave Communication Systems: Achievements and Challenges IEEE Open J. Commun. Soc. Pub Date : 2020-08-12 Kais Hassan; Mohammad Masarra; Marie Zwingelstein; Iyad Dayoub
The fifth-generation (5G) of cellular networks and beyond requires massive connectivity, high data rates, and low latency. Millimeter-wave (mmWave) communications is a key 5G enabling technology to meet these requirements thanks to its technical potentials that can be integrated with other 5G enablers such as ultra-dense networks (UDNs) and massive multiple-input-multiple-output (massive MIMO) systems
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Hybrid SPAD/PD Receiver for Reliable Free-Space Optical Communication IEEE Open J. Commun. Soc. Pub Date : 2020-09-09 Shenjie Huang; Majid Safari
Free-space optical (FSO) communication provides wireless optical connectivity with high data rates and low-cost implementation; however, its performance is strongly influenced by the power attenuation due to the infrequent adverse weather conditions. This article proposes a novel highly sensitive dual-mode receiver comprising an array of single-photon avalanche diodes (SPADs) and a PIN photodiode (PD)
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Power Scaling Laws and Near-Field Behaviors of Massive MIMO and Intelligent Reflecting Surfaces IEEE Open J. Commun. Soc. Pub Date : 2020-09-01 Emil Björnson; Luca Sanguinetti
The use of large arrays might be the solution to the capacity problems in wireless communications. The signal-to-noise ratio (SNR) grows linearly with the number of array elements $N$ when using Massive MIMO receivers and half-duplex relays. Moreover, intelligent reflecting surfaces (IRSs) have recently attracted attention since these can relay signals to achieve an SNR that grows as $N^{2}$ , which
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Cooperative Passive Pedestrian Detection and Localization Using a Visible Light Communication Access Network IEEE Open J. Commun. Soc. Pub Date : 2020-09-02 Hamid Hosseinianfar; Maite Brandt-Pearce
Visible light communication (VLC) systems are promising candidates for future indoor access and peer-to-peer networks. The performance of these systems, however, is vulnerable to line of sight (LOS) link blockage due to objects inside the room. Considering pedestrians as the most common VLC links blocking obstacles, we develop a probabilistic passive pedestrian detection and localization method. Our
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Throughput and Delay Analysis of IEEE 802.11-Based Tree-Topology Networks IEEE Open J. Commun. Soc. Pub Date : 2020-09-02 Takeshi Kanematsu; Yin Wan; Kosuke Sanada; Zhetao Li; Tingrui Pei; Young-June Choi; Kien Nguyen; Hiroo Sekiya
This article aims to investigate the performance of the IEEE 802.11-based tree-topology network, where a wireless node is within the others’ carrier sensing ranges. In such a network, the concurrent transmission is a dominant cause of frame collisions. Moreover, the relay nodes (RN) (i.e., in the tree) likely cause the coexistence of non-saturated and saturated nodes in the networks. Those conditions
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PIBES - A Competing-Flow-Aware Protocol for Real-Time Video Applications IEEE Open J. Commun. Soc. Pub Date : 2020-08-14 Lioba Heimbach; Lingfeng Guo; Rudolf K. H. Ngan; Jack Y. B. Lee
With the recent explosive growth in online classes and virtual meetings, real-time video communication has quickly become essential to everyday life. Despite its widespread deployment, our investigation revealed that current protocols, ranging from industry standards such as WebRTC to state-of-the-art research such as Salsify, frequently perform sub-optimally in the presence of competing flows at the
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Low-Complexity Vector Quantized Compressed Sensing via Deep Neural Networks IEEE Open J. Commun. Soc. Pub Date : 2020-08-28 Markus Leinonen; Marian Codreanu
Sparse signals, encountered in many wireless and signal acquisition applications, can be acquired via compressed sensing (CS) to reduce computations and transmissions, crucial for resource-limited devices, e.g., wireless sensors. Since the information signals are often continuous-valued, digital communication of compressive measurements requires quantization. In such a quantized compressed sensing