IET Communications

The fifth‐generation (5G) technology is seen to be a solution for developing countries to improve their quality of services in terms of transportation, education, health, agriculture, and other fields, thereby holding the promises of economic ...

This paper has highlighted the obstacles and challenges that providers and operators who plan to invest, deploy, or develop 5G technology in developing countries may face. image image

Accurate channel state information (CSI) is extremely crucial to realize high‐accurate hybrid precoding, in millimeter wave communication systems. In order to improve the CSI estimation performance, several traditional channel estimators have been ...

Numerical simulations validate that our method could achieve the much higher channel estimation accuracy, yet only incurs the lower overhead compared with the traditional scheme. image image

Offset spatial modulation (OSM) is an attractive variant in the family of spatial modulation technology, which is capable of reducing the frequency of radio frequency chain switching in practical implementations. This paper elaborates on the ...

This paper elaborates on the benefits of adaptive power allocation (PA) conceived for offset spatial modulation systems. First, a closed‐form solution of the optimal PA algorithm is derived for the case of two transmit antennas, which maximizes the ...

Frequency‐time selective fading degrades the performance of communication systems, but it also provides an opportunity to collect multipath diversity and Doppler diversity. In this paper, an oversampled grouped‐linear‐constellation‐precoding (GLCP)...

Under doubly selective fading channels, the OFDM system can obtain more multipath‐Doppler diversity gains through oversampling and GLCP coding techniques. image image

Energy efficiency (EE) in the communication industry is the general trend of green communication development, and the base station sleep (BSS) strategy is crucial to improving EE. However, how to maximize the cell's EE and optimize the performance ...

The users’ backhaul of the cell is jointly provided by the sub‐6GHz band and the mmWave band. User reaccess algorithm based on multiple parameters access criterion is adopted when their severed base stations (BSs) are shut down. We also consider a ...

The reconfigurable intelligent surface (RIS) fundamentally changes the existing anti‐jamming paradigm by reconstructing the wireless propagation environment. However, the existing RIS‐based anti‐jamming work mainly considers narrow‐band frequency‐...

The use of RIS to enhance the anti‐jamming capability of broadband orthogonal frequency division multiplexing system in frequency‐selective fading channels is studied. image image

A user equipment (UE) in ultra‐dense networks (UDN) has a high chance of being in close proximity to many cells. multiple association (MA) can be used to serve users with high data rate demands in such a deployment scenario. However, because of ...

A user equipment in ultra‐dense networks has a high chance of being in close proximity to many cells where, multiple association (MA) can be used to serve users with high data rate demands. This paper focuses on the performance of MA with mobility support ...

At present, there are few sparse arrays used in the mixed near‐field (NF) and far‐field (FF) localization based on non‐circular (NC) signals. Inspired by the symmetric flipped nested array (SFNA) used in the existing mixed NF and FF NC source, in ...

Improve Symmetric Flipped Nested Array for Mixed Near‐Field and Far‐Field Non‐Circular Sources Localization. image image

This paper proposes combined precoding and artificial noise‐insertion scheme to enhance the secrecy of generalized precoded spatial modulation when the wiretap channel is partially correlated with the legitimate channel. It is shown that ...

This paper proposes combined precoding and artificial noise‐insertion scheme to enhance the secrecy of generalized precoded spatial modulation when the wiretap channel is partially correlated with the legitimate channel. The security of the proposed ...

Quantum computing poses fascinating challenges for current cryptography, threatening the security of many schemes and protocols widely used today. To adapt to this reality, the U.S. National Institute for Standards and Technology (NIST) is ...

In this article, the authors report on the implementation of a post‐quantum group key exchange protocol, which is proven secure in the so‐called Quantum Random Oracle Model. It is based on a two‐party design called Kyber, which is a finalist in the NIST ...