Presents the table of contents for this issue of the publication.

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

Presents the table of contents for this issue of the publication.

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

Presents the table of contents for this issue of the publication.

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

Recently, the construction of matrix-product codes with certain self-orthogonality is an effective way to obtain good quantum codes. One of the most frequently used means in this process is to construct quasi-unitary matrices as the defining matrices of matrix-product codes. Further, if the defining matrix is NSC, then the corresponding matrix-product code has maximal minimum distance. Inspired by

In this letter, for the first time, an edge-coloring technique is proposed to characterize a certain elementary trapping set (ETS) and to obtain sufficient conditions to avoid small ETSs from occurrence in the Tanner graph of SC-LDPC convolutional codes. This technique is applicable to all protograph-based LDPC codes with different girths whose protographs are single-edge, that is, the entries of their

Recently, a new polynomial basis over finite fields was proposed such that the computational complexity of the fast Fourier transform (FFT) is $O(n\log n)$ . Based on FFTs, the encoding and decoding algorithms for Reed-Solomon (RS) codes were proposed, which are shown to have the lowest computational complexity in the literature. However, these algorithms require that the code length and the number

Multi-permutation codes for rank modulation scheme have been recently proposed for efficiently storing data in flash memories. In this letter, we investigate the problem of a single burst unstable deletion (BUD) of length $t$ in a $t$ -balanced multi-permutation and this problem can be decomposed into the sub-problems of a single permutation-invariant deletion (PID) in $t$ permutations by a rank demodulation

The security of linear network coding schemes such as Random Linear Network Coding (RLNC) and Sparse Random Linear Network Coding (SRLNC) is an important performance metric. One of the security aspects of these coding schemes is the probability that a potential eavesdropper recovers a fraction of source packets. In this work, we consider a network consisted of a sender, a legitimate receiver and an

One of the by-products of Sparse Network Coding (SNC) is the ability to perform partial decoding, i.e., decoding some original packets prior to collecting all needed coded packets to decode the entire coded data. Due to this ability, SNC has been recently used as a technique for reducing the Average Decoding Delay (ADD) per packet in real-time multimedia applications. This study focuses on characterizing

To evaluate the performance of wireless multi-path channels with discrete inputs, this letter investigates the ergodic mutual information (EMI) of a generalized fading type named mixture gamma distribution (MGD) under $M$ -ary quadrature amplitude modulation ( $M$ -QAM) signaling. An accurate closed-form expression for the EMI is developed to approximate the exact value. The MGD fading can be specialized

Quickest change detection (QCD) is a fundamental problem in many applications. Given a sequence of measurements that exhibits two different distributions around a certain flipping point, the goal is to detect the change in distribution around the flipping point as quickly as possible. The QCD problem appears in many practical applications, e.g., quality control, power system line outage detection,

Ethernet has been a backbone of data centers since inception of cloud computing. The reason is its simplicity, cost effectiveness, wide existing base, and maturity. However, Ethernet is unreliable when it comes to providing guaranteed transmission. Consequently, IEEE 802.1Qbb standard has been introduced to provide reliability based on congestion notification (CN) mechanism of IEEE 802.3x. However

Traditionally, even though the base station (BS) is equipped with multiple antennas, it has not been able to apply antenna technique such as an uplink multi-user multiple-input multiple-output (MU-MIMO) during the random access (RA) procedure due to the contention feature of the RA. To overcome such limitation, this letter proposes a novel RA framework leveraging both non-orthogonal preambles and multi-antenna

The integration of intelligent reflecting surface (IRS) to multiple access networks is a cost-effective solution for boosting spectrum/energy efficiency and enlarging network coverage/connections. However, due to the new capability of IRS in reconfiguring the wireless propagation channels, it is fundamentally unknown which multiple access scheme is superior in the IRS-assisted wireless network. In

Blind data detection is widely investigated since it finds many crucial applications in the interference cancelation, cognitive radio, and military interception, etc. In this letter, we propose a blind iterative algorithm that simultaneously improves the performance of channel coding identification and data detection in the communication system with the unknown channel coding and the unknown fading

In this letter, we investigate the sequence estimation problem of faster-than-Nyquist (FTN) signaling as a promising approach for increasing spectral efficiency (SE) in future communication systems. In doing so, we exploit the concept of Gaussian separability and propose two probabilistic data association (PDA) algorithms with polynomial time complexity to detect binary phase-shift keying (BPSK) FTN

We consider vertical Bell laboratories layered space-time architecture for offset quadrature amplitude modulation based filter bank multicarrier (FBMC) systems, and propose two different receivers. We first investigate a low-complexity QR decomposition (QRD) based conventional minimum mean square error (MMSE) successive interference cancellation (C-MMSE-SIC) receiver. The intrinsic interference in

Fingerprinting based localization is attracting increasing attention in recent years, yet the great majority of relative works focus on static multi-sensor circumstances. This letter, instead, considers a dynamical fingerprinting localization scenario for the device with intermittently emission status, whereby the fingerprints are obtained by the combination of RSS and AoA via the popular massive-antenna

In this letter, we address the problem of estimating the integer part of carrier frequency offset (CFO) in space frequency block codes (SFBCs) systems with orthogonal frequency division multiplexing (OFDM) modulation schemes. We derive a maximum-likelihood (ML) estimator assuming that the receiver has two receive antenna, and then we extend the analytical analysis to an arbitrary number of receive

Frequency estimation is a fundamental problem in many areas. The previously proposed q -shift estimator (QSE), which interpolates the discrete Fourier transform (DFT) coefficients by a factor of q , enables the estimation accuracy to approach the Cramér-Rao lower bound (CRLB). However, it becomes less effective when the number of samples is small. In this letter, we provide an in-depth analysis to

This letter investigates a channel assignment problem in uplink wireless communication systems. Our goal is to maximize the sum rate of all users subject to integer channel assignment constraints. A convex optimization based algorithm is provided to obtain the optimal channel assignment, where the closed-form solution is obtained in each step. Due to high computational complexity in the convex optimization

This letter proposes a passive localization method with non-cooperative radiation sources and distributed receivers. In this letter, a pair of mutually inverse networks is put forward. The inverse network aims to generate more labeled data, and the original network is trained with the generated data to learn the mapping from the observed data to the target location. Experimentally, the results show

There are many cases in which the noise corrupts the signals in a significant manner. To better analyze these signals, the noise must be removed from the signals for further data analysis, and the process of noise removal is referred to as denoising. In this letter, we propose a novel approach to the pulse denoising problem by extracting features from time of arrival (TOA) sequences using the autoencoders

Human sensing based on commodity Wi-Fi devices has become a promising technique in human tracking, gesture recognition, walking speed monitoring, in-home healthcare, etc. However, past human sensing systems usingWi-Fi capture limited information about humans. Hence in this letter, we try to make commodity Wi-Fi devices act as cameras to directly capture human poses, i.e., fine-grained human skeleton

Molecular communications has recently emerged as a new form of information transfer that uses chemical signals as information carriers. Alongside their novel applications in communications theory, chemical signals may also be utilized for various other applications, such as abnormality detection, direction finding, and entity localization. Among localization tasks, current literature mainly focuses

This letter proposes a cost-efficient convolutional neural network (CNN) for robust automatic modulation classification (AMC) deployed for cognitive radio services of modern communication systems. The network architecture is designed with several specific convolutional blocks to concurrently learn the spatiotemporal signal correlations via different asymmetric convolution kernels. Additionally, these

In this letter, we propose a new orthogonal coding-based modulation (OCBM) scheme, in which all available transmitting subcarriers and antennas are activated at a time instant to transmit the data constellation symbols, and the indices of the activated subcarriers and antennas are also harnessed to carry information bits. Our OCBM especially addresses a novel scheme in spatial modulation (SM) domain

Optical signal-to-noise ratio (OSNR) is an important parameter in coherent optical communication systems to monitor the quality of the received signal and the transmission-link fault. The OSNR monitoring technique based on the moments of the received signals is simply and blind, where no extra training sequence is required. The moments-based method works well with QPSK signals with constant modulus

Free space optical (FSO) communication systems experience atmospheric turbulence-induced fading, which is typically modelled by lognormal distribution. Since the decreasing rate of error probability over lognormal fading channels does not converge to a finite value, the conventional definition of diversity order yields infinity and does not provide any insight into system design. In this letter, we

Visible light communications (VLC) has emerged as a viable supplement for high speed next-generation communication systems. However, performance of a VLC link is limited by the nonlinear characteristics of light emitting diodes (LEDs), ambient light, and inter-symbol interference (ISI). In this letter, the paradigm of least-squares based post-distortion over reproducing kernel Hilbert spaces (RKHS)

In multicore fiber (MCF) equipped spectrally-spatially flexible optical networks (SS-FONs), the inter-core crosstalk (XT) affects quality of transmission (QoT) of lightpaths if it exceeds threshold XT ( $XT_{th}$ ). Thus, XT-management is of predominant concern in SS-FONs. In this work, we exploit the spatial dimension (i.e., core) of SS-FONs to calculate XT-aware routes, and propose a novel low-crosstalk-margin

In this letter we experimentally verify a real-time implementation of the ‘better-than-Nyquist’ pulse shape in carrier-less amplitude and phase (CAP) modulation in the context of a visible light communications system. We use two National Instruments universal software radio peripherals (USRPs) as a transmitter and receiver working independently. Previously reported experimental work on pulse shaping

This letter proposes three distinct modulation schemes belonging to the class of rotated color-shift keying (CSK) to improve the performance of regular CSK over a tricolor visible light communications (VLC) channel subject to signal-dependent noise (SDN). In such channels, regular CSK schemes suffer from a severe constellation distortion. The proposed rotated CSK schemes termed respectively separative

This letter studies the energy-efficient unmanned aerial vehicle (UAV) communications to support ground nodes (GNs). The system considers the UAV working as a relay while there is a base station (BS) on the ground. We analyze the UAV energy consumption model to design the energy-efficient UAV trajectory path. We formulate the energy-efficient UAV relaying communication, which considers both throughput

Non orthogonal multiple access (NOMA) and mobile edge computing (MEC) are evolving as key enablers for fifth generation (5G) networks as this combination can provide high spectral efficiency, improved quality-of-service (QoS), and lower latency. This letter aims to minimize the transaction time difference of two NOMA paired users offloading data to MEC servers by optimizing their transmission powers

Multi-connectivity ( $MC$ ) is proposed in Fifth-Generation mobile communications systems ( $5G$ ) to mitigate the deterioration of Quality-of-Service owing to line-of-sight blockage and lack of communication resources. The main idea of MC is to associate single user equipment with multiple network layers and multiple radio access technologies, simultaneously. In previous studies, MC is demonstrated

360-degree video provides an immersive 360-degree viewing experience and has been widely used in many areas. The 360-degree video live streaming systems involve capturing, compression, uplink (camera to video server) and downlink (video server to user) transmissions. However, few studies have jointly investigated such complex systems, especially the rate adaptation for the coupled uplink and downlink

In this letter, resource management (RM) for hybrid wireless communication systems between vehicles and infrastructures is investigated, where radio frequency and visible light communications coexist. Specifically, the RM issue is formulated as an optimization problem of the lower bound of energy efficiency over multiple consecutive data transmission slots, which considers the variations of link availability

Recent developments of self-interference suppression techniques have enabled practical implementations of full-duplex (FD) cognitive-radio (CR) communication systems. Such systems can significantly enhance spectrum utilization by allowing a CR user to simultaneously transmit and receive over the same frequency channel. However, the CR FD-capabilities challenge the effectiveness of existing CR-based

In this letter, we propose a new and efficient physical layer collision recovery method which exploits the statistical properties of RFID tag signals in terms of the second and fourth-order cumulants. This method is able to recover more than two collided tags even with a single receive antenna at the reader and without requiring any modification in the EPC C1 G2 standard used for UHF RFID passive tags

Millimeter wave (mmWave) massive multiple-input and multiple-output (mMIMO) is a key technology for increasing the capacity of the future wireless communication systems. However, high-resolution ADCs are costly and infeasible for mmWave mMIMO systems due to high power consumption. Hence, there is a lot of interest in low-resolution ADCs including ultra-low-precision 1-bit ADCs. Such ADCs can be implemented

Multiple wireless transmitters communicate with their information receivers while radiating RF energy to multiple nearby energy harvesters. The channels from the transmitters to the receivers and to the energy harvesters are time-varying and unknown. The transmitters jointly determine their multi-antenna transmissions to fairly charge all the energy harvesters while maintaining the signal-to-interference-and-noise

This letter develops practical linear precoding and stream combining techniques for rate-splitting (RS) in multiuser multiple-input multiple-output (MIMO) systems. We propose linear combining techniques based on the Min-Max, the maximum ratio and the minimum mean-square error criteria along with Regularized Block Diagonalization (RBD) precoders for RS-based multiuser multiple-antenna systems. An analysis

Lens antenna array (LAA) has been widely studied to reduce the number of RF chains in millimeter wave communication systems. It is a critical issue to make a tradeoff between the hardware cost and the ability to cope with the power leakage problem. In this letter, we propose a low-cost group-selected structure without necessitating the high-cost phase shifters. More specifically, the antennas are divided

Under multipath fading channels, maximum likelihood detection of multiple-input multiple-output filter-bank multicarrier-quadrature amplitude modulation (MIMO FBMC-QAM) system suffers from the performance degradation due to the residual interference. To solve this problem, we propose a precoding-aided MIMO FBMC-QAM system for the per-tone maximum likelihood detection. By adopting the precoder as the

In this letter, we propose a two-step user-paring scheme for an orthogonal frequency-division multiplexing (OFDM)-based cooperative non-orthogonal multiple-access (NOMA) system where far users cannot communicate with the base station directly. The first step is for allocating near users, and the second step is for allocating far users. To evaluate the performance of the proposed scheme, we derive the

We investigate the achievable rate of a hybrid cell-free (CF) massive multiple-input multiple-output (MIMO) non-orthogonal multiple-access (NOMA) underlaid below a primary massive MIMO. We propose a low complexity sub-optimal user-clustering method and derive the closed-form sum rate expression for Rayleigh fading channels by considering the effects of intra-cluster pilot contamination, inter-cluster

Functional splitting and packetized fronthaul (FH) are two approaches to realize cloud radio access networks in a cost-effective manner. In the former, some baseband functionalities are offloaded to remote radio units (RRUs) instead of centralizing all of them at a baseband unit pool. This reduces the capacity and latency requirements on FH when massive multiple-input-massive-output RRUs are used.

This letter investigates the potentials of strengthening the network-wide physical layer security performance of the random access based wireless mutual broadcast (RA-WMB), where both transmitters and receivers are unspecified, under a stochastic geometry framework. Further, this study proposes the design principles of the key operation parameters including the transmission probability and friendly

This letter investigates the joint content push and transmission design relying on the cache-enabled helper. The helper is also equipped with the function of simultaneous wireless information and power transfer. With the help of non-orthogonal multiple access (NOMA) technique, we propose a two-stage transmission scheme. Under the minimum quality of service requirements, the sum rate optimization problem

Centralized routing is beneficial as it provides a global network view to plan and achieve the best and effective path for real-time traffic. With the rapid development of software defined networking, centralized routing has aroused more and more concern of researchers. An effective centralized load balancing routing (LBR) for wireless mesh network considering energy harvesting is proposed in this

This paper studies buffer-aided relay-assisted Mobile Edge Computing (MEC) architecture as the fundamental system in hierarchical multi-hop MEC. We propose a stochastic offloading scheme where a buffer-aided relay, equipped with a computing server, randomly decides to process the tasks of a source node by its own server, or to forward them to the server of the next node in the hierarchy. We analyze

In the letter by Kim et al. [item 1) in the Appendix], Hyun-Myung Kim was omitted from the byline, although being a main contributor to the work.

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In underwater acoustic sensor networks (UASNs), the spatially and temporally varying acoustic channel causes random route interruptions and transmission void region. Further, the long propagation delay of acoustic links causes complicated randomness of packet collisions. Inspired by the unpredictability of both route interruptions and packet collisions in UASNs, a collision and interruption tolerant