Historical perspective of free space optical communications: from the early dates to today's developments
This survey article discusses the revolutions of wireless communication technologies right from the prehistoric man's fire signals to today's space optical communications. A brief description of evaluations of communication technologies from the ancient ...
Blind recognition of alpha‐stable random carrier signals by an eavesdropper in random communication systems
Invisibility of alpha‐stable (α‐stable) noise as carrier signals, in the presence of additive white Gaussian noise (AWGN) as channel noise, is a key factor to ensure covert transmission by employing random communication systems (RCSs). This study ...
Hybrid precoding with phase shifter reduction for 5G massive antenna multi‐user systems in millimetre wave
In this study, the performances of commonly used precoding schemes are evaluated based on channel measurements carried out at 28 GHz in a railway station for a massive antenna system configuration. And a hybrid precoding algorithm for a fifth generation (...
Higher order statistics for modulation and STBC recognition in MIMO systems
Identification of modulation and space‐time block code (STBC) is an important task of receivers in applications such as military, civilian, and commercial communications. Here, we consider multiple‐input multiple‐output (MIMO) systems. We propose two ...
Improper Gaussian signaling scheme for the two‐users X‐interference channel
Different from conventional proper Gaussian signalling (PGS), whose achievable rate depends on the input signals' covariances only, the capacity of channels with improper Gaussian signalling (IGS) is a function with the signals' covariances and pseudo‐...
MO‐CSO‐based load‐balanced routing in MRMC WMN
The multi‐radio–multi‐channel wireless mesh networks (MRMC WMNs) have attracted much attention due to their low cost, reliable coverage, stable topology, and so forth. Load balancing among gateways (GWs) is a challenging task in MRMC WMNs. The GW nodes ...
Efficient beam allocation strategy for statistical beamforming‐based massive multiple‐input–multiple‐output downlink systems
This study focuses on an efficient fairness aware beam allocation strategy which is based on user position approach. The proposed algorithm is efficient to cope with the effects of user position uncertainties and imperfect channel state information (CSI). ...
Performance analysis of the odd–even uniform interleaver for turbo codes
Interleaver design has been an intense research area since the invention of turbo codes, both from theoretical and technological perspectives, still receiving the attention of engineers. This work is a theoretical treatment on the subject of interleaver ...
Prolonging smart grid network lifetime through optimising number of sensor nodes and packet length
In the era of internet‐of‐things (IoT), many applications utilise wireless sensor networks (WSNs)including smart grids (SGs). Designing WSNs to fulfill the SGs requirementsimposes some challenges such as limited power and signal propagationimpairments, ...
Deep reinforcement learning‐based beam Hopping algorithm in multibeam satellite systems
Beam hopping (BH) is the key technology to improve the system throughput and decrease the transmission delay in multibeam satellite systems. The objective of this study is to find a policy to maximise the expected long‐term resource utilisation. The BH ...
Outage and delay performance of content caching in two‐tier cooperative cellular networks
The authors consider a content‐centric two‐tier heterogeneous cellular network where the macro base stations (MBSs) and small base stations (SBSs) are spread based on two independent Poisson point processes. The set of contents are stored in the MBSs ...
Subarray hybrid precoding with finite‐resolution PSs for massive MIMO capacity maximisation
The addition of analogue processing to the digital precoding, known as hybrid beamforming (HB), is an efficient solution for massive multiple‐input multiple‐output (MIMO) systems. The design of a phase shifter (PS) network plays an important role in the ...
Fairness‐based multi‐task reward allocation in mobile crowdsourcing system
Mobile crowdsourcing‐based applications, widely popular, exploit the sensing data crowdsourced from smartphone users without putting any burden on the extra cost of data sensing and collection. However, user participation in crowdsourcing incurs resource ...
Deterministic construction of array QC CS measurement matrices based on Singer perfect difference sets
Low‐density parity‐check (LDPC) codes and compressed sensing (CS) share many common environments. In this study, a novel approach for constructing a new class of deterministic sparse sensing matrices based on array quasi‐cyclic (QC) LDPC codes via Singer ...
Performance and optimisation of agent compression and forwarding system for correlated sources
A system for the correlated Gaussian sources to perform compression forwarding via the multi‐relay network in the additive white Gaussian noise channel is proposed in this study. The characteristic of the newly proposed system is that it is composed of ...
Evaluation of next‐generation low‐power communication technology to replace GSM in IoT‐applications
The large demand for smart metering and control, asset tracking, remote monitoring, and other applications has resulted in the emergence of innovative new internet of things (IoT) low‐power wide‐area networks (LPWANs) featuring low power consumption, low ...
RECV‐MAC: a novel reliable and efficient cooperative MAC protocol for VANETs
In vehicular ad hoc networks (VANETs), mobility among vehicles can result in rapid topology changes with frequent link breakage and unstable communications, which cause collision and packet loss. Conversely, cooperative transmission can improve ...
Performance evaluation of underlay cognitive hybrid satellite–terrestrial relay networks with relay selection scheme
The applicability of cognitive radio (CR) techniques into satellite communications has received considerable attention in recent years. This study considers the integration of relay transmission into CR‐based satellite terrestrial network, which offers ...
Comprehensive performance analysis of data‐fusion aided cooperative cognitive radio network over η − μ fading channel
In this paper, analytical performance of efficient soft‐data combining schemes (SDCSs) for cognitive radio network (CRN) is investigated. The performance is investigated in the presence of noise and generalized η−μ fading. In more detail, each CRU senses ...
Overlapped LT codes over the binary erasure channel: analysis and design
Fountain codes are promising forward error correction codes suitable for broadcast and multicast applications where many users with different capabilities are involved in the system. Fixed‐rate codes need a priori information about each channel to decide ...
Nyquist filter design
Designing a new pulse‐shaping filter that satisfies the Nyquist condition to mitigate inter‐symbol interference and achieve better stopband attenuation is a new step towards the development of next‐generation mobile communication systems. In this study, ...
Interference Management and Resource Sharing in Moving Networks
Cellular users on‐board vehicles often experience low quality of service (QoS) due to the vehicular penetration loss. Hence, the so‐called mobile‐cells (MCs) have been proposed as a solution. The envisaged MCs will require additional radio resources, ...
Probability bounds of cross‐layer interference in femtocell‐underlay cellular networks employing interference alignment
In a conventional cellular network underlaid with femtocells, the authors employ interference alignment (IA) to restrict cross‐layer co‐channel interference (X‐interference). In their scenario, locally obtained channel state information is allowed to be ...
Security and reliability trade‐off analysis of joint user and jammer selection in the face of co‐channel interference
In this study, the authors investigate the security and reliability trade‐off (SRT) performance of a multiuser wireless network, where an eavesdropper attempts to overhear the confidential transmissions between a base station and multiple users under the ...
NIML: non‐intrusive machine learning‐based speech quality prediction on VoIP networks
Voice over Internet Protocol (VoIP) networks have recently emerged as a promising telecommunication medium for transmitting voice signal. One of the essential aspects that interests researchers is how to estimate the quality of transmitted voice over VoIP ...
Three‐dimensional non‐stationary geometry‐based stochastic model for UAV‐MIMO Ricean fading channels
In this study, the authors propose a novel three‐dimensional (3D) non‐stationary geometry‐based stochastic model (GBSM) and the corresponding deterministic and stochastic simulation models for non‐isotropic unmanned aerial vehicle (UAV) multiple‐input ...
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