To solve the problem that the existing Monte Carlo Localization (MCL) algorithm has long localization time and large localization error in the real-time localization of downhole personnel and mobile equipment, an inertial optimization MCL deep mine localization algorithm based on gray prediction and artificial bee colony (IMCL-GABC) is proposed. Firstly, the movement speed and direction of the personnel

Currently, IoT is being used as a novel tool in many applications. Some applications use the end nodes such as wireless sensor network, RFID and embedded systems referred to as resource-constrained devices. These devices have limitations in computing and communication power, memory capacity and power. One of the approaches to discuss key distribution in these devices is to apply and use key pre-distribution

Ultra-wideband (UWB) positioning performance is highly related to the accuracy of the coordinates of the fixed anchor nodes, which form the system infrastructure. The process of determining the position of the anchors is called calibration. In an anchor-based system, it is crucial for the fixed nodes to know their locations with the highest possible accuracy. However, in certain situations, it is almost

Unmanned Aerial Vehicle (UAV) can play an important role in wireless systems as it can be deployed flexibly to help improve coverage and quality of communication. In this paper, we consider a UAV-assisted Mobile Edge Computing (MEC) system, in which a UAV equipped with computing resources can provide offloading services to nearby user equipments (UEs). The UE offloads a portion of the computing tasks

The use of wireless transmission networks in various environments has become widespread. One of the main challenges in wireless networks is that the wireless transmission is highly vulnerable to eavesdropping attacks. In this paper, an amplify-and-forward cooperative relaying wireless system with relay selection is considered to improve the physical layer (PHY) security of the wireless system in the

In wireless sensor networks (WSN), the data are collected from the sensor using the mobile sink for preventing the energy-hole or hotspot problem through traversing the network periodically. The mobile sink permits the node to visit only the fewest number of nodes or locations called rendezvous points (RPs) to minimize the energy utilization and delay by visiting all the cluster heads (CHs). Further

The high data traffic requirements of the new generation 5G networks will be satisfied with effective and efficient mobility and handover management. However, dense or ultra-dense small cell (eNB) placements in 5G networks may lead to some problems, such as latency, handover failures, frequent handover, ping-pong effect, etc. In this study, we proposed an Entropy-based simple additive weighting decision-making

Visualization of numerical results in computer communications is very important such that some very small differences are sometimes crucial, distinguishable, and descriptive for comparison among some state-of-the-art techniques. For the issue of data quality evaluation and compression rates in internet of multimedia things, there are many metrics traditionally, for instance, peak signal-to-noise ratio

The 3D critical node (C-N) detection can play a vital role in algorithm development of security, surveillance, monitoring, topology detection, and situation-aware emergency navigation for the Internet of Things (IoT). However, 3D C-N detection problem in IoT raises some issues and also introduces new challenges. The existing state of the art in 3D C-N detection shows that rely on prior known anchor

In the vehicular ad hoc network (VANET), due to the particularity of high-speed movement of vehicle nodes, there are higher challenges in link stability and network topology control overhead. In this paper, a new algorithm of clustering AODV based on edge computing strategy is proposed. Considering the vehicle node energy and speed, the AODV routing protocol based on the minimum hop number is optimized

In wireless network multiple nodes can simultaneously transmit intrusion event that can be avoid-ed from being reported to the sink in real-time which may also lead to collision or channel inferences. To address these problems a multichannel wireless sensor networks has been deployed to achieve collision-free and efficient data transfer between nodes. The proposed solution considers channel interference

Nowadays, the selection of relay in cooperation-based communication is a very demanding topic in research. The choice of the relay majorly depends on various criteria; hence, multiple criteria decision-making techniques are required to find out the best relay as relay-based transmission performs better than without relay transmission. Existing research has not considered the transmission failure of

Wireless networks are used extensively in communication technologies. From Tesla to date researchers, many are working on wireless data transmission techniques and technologies. Despite the immense progressions over the past decade, there are precise hurdles that the industry endures to face. Bandwidth restrictions, latency problems, and device compatibility issues prevent the viewer from meeting seamless

Resource management (RM) is a challenging task in a cloud computing environment where a large number of virtualized, heterogeneous, and distributed resources are hosted in the datacentres. The uncertainty, heterogeneity, and the dynamic nature of such resources affect the efficiency of provisioning, allocation, scheduling, and monitoring tasks of RM. The most existing RM techniques and strategies have

Clustering of sensor nodes is one of the prominent methods applied to Wireless Sensor Networks (WSN). In the cluster-based WSN scenario, the sensor nodes are assembled to generate clusters. The sensor nodes are composed of limited battery power. Therefore, energy efficiency in WSN is crucial. A load of sensor node and its distance from base station (BS) are the significant factors of energy consumption

This paper discusses the design, implementation and field trials of WiMesh, a resilient wireless mesh network-based disaster communication system purpose-built for underdeveloped and rural parts of the world. Mesh networking is a mature area, and the focus of this paper is not on proposing novel models, protocols or other mesh solutions. Instead, the paper focuses on the identification of important

An incorrect version of Figure 7 appeared in our paper entitled “Energy-efficient routing in the proximity of a complicated hole in wireless sensor networks” published in Wireless Networks.

These days, number of smart products based on Internet-of-Things (IoT) has been increased. These products are unified via various wireless technologies like, Bluetooth, Z-wave, Wi-Fi, Zigbee, etc. While the need on the wireless networks has improved, the assaults against them throughout the time have expanded on top. In order to identify these assaults, an intrusion detection system (IDS) with a prominent

Internet connectivity is now considered to be a basic human right and in this era of information technology, more efficient ways of browsing the web are being found. The most popular search engine, Google uses its ‘Page Rank Algorithm’ for its searches. In this paper, we aim to find out a more efficient way of searching the web and better organising the search result based on the categories of the

In this paper, we introduce an approach to secure IoT devices from unsolicited emails by using certain AI-based features and clustering in real-time. We propose a novel approach that first filters the unwanted emails from the incoming traffic and then classifies them into spam and phishing for Internet of Things (IoTs) based systems in industry 4.0. The AI mechanism collects and analyzes emails to

The ability to obtain the accurate location of nodes in wireless sensor networks is crucial for practical applications. The sensed data is meaningless if it is not accompanied by its location. Range-free localization techniques are favored to overcome the hardware limitations of sensor nodes and to avoid the costly range-based techniques. DV-Hop is a range-free localization algorithm that is well-known

This paper studies joint source and relay beamforming optimization and time allocation for a wireless powered multi-relay multi-user network, where a multi-antenna base station (BS) transmits information to users with the assistance of multiple single-antenna relays. Considering that the relays are energy-constrained, which are powered by the BS wirelessly, we aim to maximize the minimum rate among

The advancement of power grids leads to the concept of the microgrid. Microgrids are placed at the end of an entire grid-connected system. Wireless sensor networks (WSNs) are engaged in the management of power generation, electricity consumption, and power transmission and distribution. In power generation, WSNs detect the amount of power generated that is managed by a microgrid for large-scale applications

The much-awaited year—2021 that promises to deliver a great deal on the 5th generation (5G) wireless systems' expectations is finally here. Several solutions have been proposed to deal with the energy challenges in the evolving wireless systems, especially in 5G and beyond. These solutions have considered among other approaches, design of new network architecture based on the employment of new radio

The main focus in the designing of wireless sensor networks (WSNs) applications and protocols is minimizing energy dissipation while at the same time maximizing the network lifetime. In this paper, we investigate the idle listening and hotspot problems with respect to the clustering routing technique in WSNs. Some of the studies in clustering centered around equal clustering scheme while others were

A compact six-element MIMO antenna is presented for present and future wireless applications. The resonating elements of the proposed antenna are simple monopoles, which are excited by microstrip feed lines. In the MIMO antenna, two elements (Ant. 1 and Ant. 2) cover 727–1066 MHz and 5.28–6.2 GHz frequency bands for the IoT and WLAN/Wi-Fi applications, respectively. The other two elements (Ant. 3 and

Multi-channel ad hoc networks are promising technology to alleviate the spectrum scarcity in dense networks. The main challenge for channel access in distributed multi-channel ad hoc networks is channel synchronization and competition with neither common control channel nor dedicated control transceiver. In this paper, a Tight Synchronized MAC protocol with distributed synchronization and competition

With the ever-increasing deployment of wireless communication technologies, effective management of scarce power and radio spectrum resources is of primary concern. The available bandwidth spectrum should be utilized in the most efficient and controlled way for practical economic growth of industries in conformity with the evolving demand of energy for powering wireless devices. In the proposed optimization

The recent developments in embedded system design and communication technologies popularized the adaption of the cyber-physical system (CPS) for practical applications. A CPS is an amalgamation of a physical system, a cyber system, and their communication network. The cyber system performs extensive computational operations on the data received from the physical devices, interprets the data, and initiates

Fifth-generation (5G) cellular mobile networks are expected to support mission-critical low latency applications in addition to mobile broadband services, where fourth-generation (4G) cellular networks are unable to support Ultra-Reliable Low Latency Communication (URLLC). However, it might be interesting to understand which latency requirements can be met with both 4G and 5G networks. In this paper

Providing high quality video transmission in VANETs is very challenging due to the highly dynamic, unpredictable topology, and low bandwidth characteristics. In this article, we design a system able to optimally transmit RTP video streams in an IP-based multihomed VANET. By splitting the video through its different frame types in the array of multihomed paths from the center node of the network to

Recently, the photonics-radar technology comes out as an attractive candidate in the arena of smart autonomous transportation, surveillance, and navigation-related applications owing to provide wide-spectra to attain improved and precise radar-resolutions. On the other hand, microwave radars, due to limited bandwidth, are incapable of coping with the demands of next-generation radar technology. Moreover

Distributed denial of service (DDoS) attack in cloud infrastructure has shown the new effects towards the non-targets known as “collateral damages”. The cloud-hosted services generally run inside the virtual machine (VM). These services are co-located to each other which lie on the same OS of the VM and share the resources. When the DDoS attacker targets one service, its effects can be seen on other

Numerous safety-related applications have rigid requirements for the threshold of latency limitation of message transmissions to enhance safety and traffic efficiency of vehicles on the road in vehicular ad-hoc networks (VANETs). Consequently, a medium access control (MAC) protocol for reliable and fast transmission of safety messages should focus on the maximum transmission delay. Herein, we refer

Noise and air pollution are among the most important problems and challenges in urban environments. Noise can cause several problems in functioning within urban settlements and may result in a variety of health problems. Continuous monitoring, prevention, and active work on solving these problems are in the focus of research communities, local and national agencies and organizations, and many international

Service discovery is an inevitable process in most of the network. Mobile AdHoc network (MANET) being self-sustained and resource constrained, sharing of resources and service discovery is very essential. A service discovery protocol designed for a fixed network is not suitable for AdHoc network because of the constraint in the resources, mobility of nodes and the lack of centralized infrastructure

Network coding and relay selection have attracted significant attention due to their performance improvement and spectral efficiency in wireless networks. In this work, we study joint relay selection and network coding cooperation schemes for M source-destination pairs assisted with N relays. We propose a new smart decode-and-forward max-min relay selection scheme based on the source-destination links’

A dual turn electrically coupled loop antenna is proposed to operate inside gastrointestinal capsules. The proposed structure is simple with a degree of freedom in design and compact size. In addition, it has low specific absorption rate (SAR) levels. Four different models have been designed to operate at industrial, scientific, medical (ISM) bands (433 MHz and 915 MHz). The first three antenna models

In wireless sensor networks (WSNs), various routing protocols have been proposed based on clustering to achieve energy efficiency. The performance of such routing protocols can further be improved by deploying heterogeneous sensor nodes since responsibilities can be divided among different sensor nodes according to their heterogeneity. In this paper, we propose a novel non-uniform hierarchical clustering

Assistive technologies nowadays have an increasing application in overcoming the everyday needs of visually impaired persons. Going to the grocery store for groceries is a challenge for any visually impaired person who moves without a personal assistant. Creating a perception of the space in which the person is located and the possibility of orientation in such an environment is significantly reduced

Utilising the mobilisation of a sink node in a wireless sensor network to combat the energy hole, or hotspot issue, is well referenced. However, another issue, that of energy spikes may remain. With the mobile sink node potentially communicating with some nodes more than others. In this study we propose the Mobility Aware Duty Cycling and Dynamic Preambling Algorithm (MADCaDPAL). This algorithm utilises

Orbital Angular Momentum (OAM) is an attractive feature of electromagnetic waves that gains great research attention in several areas in radio and optics. This paper describes a superposition of OAM waves of different orders for single/multi-beam steering in the transverse direction in communication and radar-sensing applications. A new design of the antenna is proposed. The main body of the antenna

The rapid growth of wireless data has caused cellular networks (3G/LTE/4G) to be overburdened, which affects the user’s quality of experience. In a mobile edge computing (MEC) architecture, caching the content at the base stations cooperatively is a prudent solution and this reduces the user-perceived latency as it brings the content closer to the user and minimizes the burden on the backhaul. However

A direct-sequence spread-spectrum (DSSS) signal has many advantages, such as low SNR and strong anti-jamming ability; thus, it is widely used in various military and civil communication systems. However, hiding and high-data-rate transmission technologies have become the key factors affecting the future applications of the existing DSSS. To solve these problems, an incremental-data stealth-transmission

Isolation plays an important role in the security of wireless sensor networks. Existing isolation models for wireless sensor networks possess excessive energy consumption. We propose a double-layer isolation mechanism based on an improved Dijkstra algorithm. The number of “optimal” nodes is obtained based on the calculation formula. Two groups of “optimal” nodes are determined by the arrival time difference

A key aspect of radio spectrum sharing and compatibility studies is the modelling of interference levels seen by the receivers of one service from the transmitters of another service. In general, calculated interference levels must be below predetermined interference thresholds for sharing or compatibility to be considered feasible. Sometimes, the modelling must take account of interference sourced

The paper deals with the simulation of selected activities in the warehouse. Routine logistics activities are the receipt of the goods, the control of the goods, and the goods’ storage in the warehousing system on the side of the entry into the warehouse. On the output side, these are activities such as picking, packing and shipping. The economy of warehouse operations depends on the efficiency of

In Underwater Acoustic Sensor Network (UWASN), node redeployment strategy is utilized to handle the reliable network coverage. The sensors deployed in the underwater are used to intellect the area and collected information is moved to the sink node. Node redeployment strategy is essential for the nodes which are placed outside the monitoring area in UWASN. In this paper, the node redeployment strategy

In the wireless sensor network (WSN) environment, large-scale failure due to the explosion, energy depletion, harsh or hostile environments, can cause disjoint partitions and disconnect the network. In this case, relay nodes (RNs) can deploy to restore connectivity. This paper has proposed a new algorithm inspired by Impala Mexican Wave with variable stride (IMWVS) for relay placement. This method

As for the low-cost and accuracy benefits of integrating Artificial Intelligence (AI) technologies in smartphones, the embedded smart sensors have been utilized in indoor localization and distance estimation applications rather than the requirement of wearable sensors. However, the effect of a potential noise during the user’s movement is still an issue, i.e. irrelevant movements. Knowing that the

The role of IEEE 802.11 wireless local area networks (WLANs) become vital due to its low cost deployment and the aspiration to improve its performance has become the need of the day. Among existing challenges the most prominent are success ratio, packet loss ratio, collision rate, fairness index, and energy consumption, advances in wireless technologies stress to surmount these challenges. To attain

The advanced communication networks require heterogeneous emerging technologies to be combined while enabling various future applications. The integration of 5G wireless and optical technology is considered an unavoidable approach to reach this goal. Based on 5G mobile communications and densification of cells, the upcoming idea of smart city becomes feasible and put on a lot of attention from the

In an era that requests facilitating access to most services by providing the online platforms, the need to own a small electronic device is increasing. The smartphone is the ideal choice for most people due to its multifunctionality. On the other hand, the rate of physical crimes on these devices raised, especially theft and counterfeiting. As a solution to mitigate these crimes, stolen or counterfeit

This paper investigates non coherent localization of an unknown target node in presence of a symmetrically opposite mirror node while the transmitter anchor node is perturbed under duress from external factors in a wireless sensor network. By limiting the transmitter anchor node translocation to a straight line, the resulting anchor-target geometry is exploited to mitigate the effects of mirror node

A quest for geographic routing schemes of wireless sensor networks when sensor nodes are deployed in areas with obstacles has resulted in numerous ingenious proposals and techniques. However, there is a lack of solutions for complicated cases wherein the source or the sink nodes are located close to a specific hole, especially in cavern-like regions of large complex-shaped holes. In this paper, we

The present technology, based on laser and visual SLAM navigation and positioning, does not apply to the event of a fire in a room where there is a large amount of smoke, for its increasingly obvious defects. In addition, traditional track deduction technology based on photoelectric encoder has accumulated error, and noise disturbance exists in the INS inertial navigation measurement technology, and

ZigBee is one of the latest technologies developed by the ZigBee Alliance to enable Wireless Personal Area works. ZigBee technology has better characteristics when compared with other wireless standards such as WI-FI, Bluetooth and WiMAX, and so on. Though the transmission range in ZigBee ranges up to a few meters, the network has several layers, designed to enable interpersonal communication within

In-network data aggregation is an inherent paradigm that extends the lifetime of resource-constrained wireless sensor networks (WSNs). By aggregating sensor data at intermediate nodes, it eliminates data redundancy, minimizes the number of transmissions and saves energy. A key component of in-network data aggregation is the design of an optimal routing structure. However, when the monitoring environment

Cloud Computing is a growing technology in which resources are provided as a service. The efficiency in providing the resources as a service depends on various factors. One of the major concerns is the suitable allocation of resources to the job. Hence, this paper introduces an Auction based model (CMCDA) for selecting the best customer-providers pairs based on credibility for resource provisioning

A Vehicular Ad hoc Network is a model of mobile Ad hoc network for running vehicles in which vehicles can communicate with wireless communication devices within a confined geographical region in the absence of fixed infrastructure. Also, it works as an intelligent system for road safety and traffic management by disseminating information among moving vehicles with the wireless sensor Ad hoc network