IET Communications

For relay terminals in wireless communication systems, the difference of the power consumed for relaying signals means unfairness, which may reduce the network lifetime when the system is energy‐constrained. Classic opportunistic relay selections always ...

The authors address the problem of coherent multitarget localisation for distributed multiple‐input multiple‐output (MIMO) radar, in the presence of phase synchronisation mismatch between each transmitter‐receiver pair. The inherent sparsity of targets in ...

Presented in this study is a novel precoding scheme for orthogonal frequency division multiplexing systems to suppress the out‐of‐band emission (OOBE). The scheme suppresses the OOBE by making the transmitted signal satisfy the continuous derivative ...

In this study, the authors investigate the energy‐aware quality of information (QoI) maximisation problem by jointly optimising the sensor selection, sampling rate, packet‐dropped rate, and transmit power in wireless sensor networks. By introducing the ...

In order to fully utilise limited spectrum resources of multiple channels and multiple radios in cognitive radio networks, the authors propose a potential game model for opportunistic spectrum access based on both accurate and inaccurate spectrum state ...

In this study, a new non‐coherent communication system, i.e. very high efficiency differential chaos shift keying system, is proposed. This system is a generalised form of the high efficiency differential chaos shift keying (HE‐DCSK) system, with an ...

Hypertext transfer protocol secure (HTTPS) relies on a group of pre‐trusted certificate authorities (CAs) for authentication and hence can avoid man‐in‐the‐middle attacks. However unfortunately, this authentication architecture can be completely subverted ...

In this study, the caching problem is investigated. Assuming that the users are only equipped with buffer of small sizes, the peak rate of caching problem is investigated in this study. In contrast to recent results in the literature, this study shows ...

Mobility management has become a core function in internet services and networks as mobile devices have been widely used and their capabilities have dramatically advanced. It is expected that proxy mobile IPv6 (PMIPv6), which is the most prominent ...

In multiple‐input–multiple‐output broadcast channels, lattice reduction (LR) preprocessing technique can significantly improve the precoding performance. Among the existing LR algorithms, the fixed complexity Lenstra–Lenstra–Lovasz (fcLLL) algorithm ...

Packet loss and delay in wireless networks is a function of both the traffic characteristics (e.g. load, burstiness) and the characteristic behaviour of the fading channel. In this study, the authors propose and analyse a new queue model in which the ...

Unlike the conventional distributed Alamouti coded orthogonal frequency division multiplexing (OFDM), over‐sampling substantially improves the performance of frequency asynchronous distributed Alamouti coded (FADAC) OFDM. This exclusive effectiveness of ...

This study presents analyses of the feasibility for the 28 GHz band with a comprehensive overview of important channel parameters. A channel measurement system with a time synchronisation scheme is also introduced which is a sliding correlator channel ...

Automatic modulation classification (AMC) techniques enable the estimation of the bit allocation table in adaptive orthogonal frequency division multiplexing (OFDM) systems. In this study, the authors investigate the classification performance of a low‐...

In a dual‐hop relaying system without a direct link between the source and the destination, the source broadcasts information signal to the relay and relay broadcasts it to the destination, thus it uses two phases to transmit one symbol. This study ...

This paper studies joint beamforming and power allocation for multicell multiuser multi‐antenna systems with the objective of maximising the minimum signal‐to‐interference‐plus‐noise ratio (max–min SINR). The authors first consider developing an iterative ...

Quadrature spatial modulation (QSM) is proposed recently as an efficient multiple‐input–multiple‐output wireless communication technique. In QSM, spatial multiplexing gain is achieved through modulating a two‐dimensional spatial constellation diagram in ...

For localisation algorithms of wireless sensor networks (WSNs), the communication overhead and the computational complexity are two main bottlenecks that should be considered beside the positioning accuracy. In this study, the authors focus on cooperative ...

This paper presents the design and analysis of spatially coupled low‐density parity‐check (SC‐LDPC) codes for Gaussian multiple access channel (GMAC). For two‐user GMAC, we consider that each user encodes their messages by SC‐LDPC codes while joint belief ...

This study proposes an incentive‐based femtocell cooperation scheme for indoor macrocell users (MUs) in an underlay two‐tier heterogeneous network which helps the indoor MUs to achieve higher data rate through time sharing access from the femtocell. Due ...

This study extends the authors’ earlier work to show that the Gaussian integer sequences of period p^m − 1 with p − 2 non‐zero out‐of‐phase autocorrelation values can be constructed from the known families of two‐tuple‐balanced p‐ary sequences over the ...

A family of rate‐compatible capacity‐approaching codes is obtained by spatially coupling multiple identical copies of rate‐compatible base codes. The base code consists of a given regular low‐density parity‐check (LDPC) code and a parameter‐adjustable ...

In this study, the authors propose a cyclic prefix (CP) based imperfect reconstruction (IPR) filter bank multicarrier (FBMC) system in the uplink of multiuser networks, known as filter bank multiple access (FBMA). The prototype filter in the system is a ...

In this study, the estimation of fast‐fading long term evolution (LTE) downlink channels in high‐speed applications of LTE advanced is investigated by the authors. A robust channel estimation and interpolation algorithm is essential in order to adequately ...

Most of traditional power allocation algorithms are often based on maximum capacity technology (MCT) in cognitive radio networks (CRNs) at the expense of higher energy consumption. The optimisation of energy efficiency power allocation schemes are ...

This study concerns sensor selection problem in wireless body area network (WBAN), which can reduce the burden of the human body and improve the energy efficiency. The authors highlight the sparse sensor array synthesis algorithm for different shapes of ...

Blind interference alignment (BIA) can eliminate users’ interference without channel state information and greatly improve the channel capacity, which has been regarded as a promising technique in next generation wireless systems. However, current BIA ...

Hierarchical quadrature amplitude modulation (HQAM) allows for transmission of multiple classes of data (such as voice, video and file transfer), provides flexibility in terms of coverage area and allows for network upgrades while maintaining backwards ...

In this study, the authors investigate the downlink area spectral efficiency (ASE) of infrastructure relay enhanced cellular systems. ASE for cellular systems is defined as the maximum achievable data rate per unit bandwidth per unit area supported by a ...

Energy‐efficient wireless communication is important for wireless devices with a limited battery life and cannot be recharged. In this study, a bit allocation algorithm to minimise the total energy consumption for transmitting a bit successfully is ...