Results 81 to 90 of about 7,667 (173)
Enhancing Satellite Link Security Against Drone Eavesdropping Through Cooperative Communication
International Journal of Satellite Communications and Networking, Volume 43, Issue 1, Page 10-22, January/February 2025.ABSTRACT Integrated satellite terrestrial networks (ISTNs) are emerging as a promising next‐generation communication technology, for example, B5G and 6G, with low‐earth orbit (LEO) satellites playing a growing role. However, the complex and unique characteristics of ISTNs make them more susceptible to cyberattacks.
Rajnish Kumar, Shlomi Arnon
wiley +1 more source
Physical layer security in satellite communication: State‐of‐the‐art and open problems
IET Communications, Volume 19, Issue 1, January/December 2025.This paper first classifies contemporary satellite communication networks into five domains and then analyse the use of PLS in each domain; these domains are hybrid satellite‐terrestrial networks, satellite‐based IoT, navigation satellite systems, FSO‐based satellites, and inter‐satellite communications.
Nora Abdelsalam +2 more
wiley +1 more source
Fine‐grained multi‐path channel estimation and matched reception by single metasurface antenna
IET Communications, Volume 19, Issue 1, January/December 2025.This paper investigates methods to enhance antenna's channel information extraction capabilities in wireless communications, particularly in challenging multi‐path environments. Focusing on the issues of channel information loss due to multi‐path superposition at the receiver and multi‐path fading during wireless channel propagation, this paper ...
Yinuo Hao, Liang Jin, Shuaifang Xiao
wiley +1 more source
MMSE‐based passive beamforming for reconfigurable intelligent surface aided millimeter wave MIMO
IET Communications, Volume 19, Issue 1, January/December 2025.Passive beamforming at reconfigurable intelligent surface (RIS) in RIS‐aided millimeter wave multiple‐input multiple‐output (mmWave MIMO) is designed together with precoder and combiner through joint optimization problem to minimize the mean square error between the transmit signal and the estimate of signal at the receiver. The optimization problem is
Prabhat Raj Gautam +2 more
wiley +1 more source
IET Communications, Volume 19, Issue 1, January/December 2025.This paper introduces an adaptive framework for optimising energy harvesting (EH) efficiency and system throughput in unmanned aerial vehicles (UAVs)‐assisted intelligent reflecting surfaces (IRS) systems. By leveraging a real‐coded genetic algorithm (RCGA), the framework effectively addresses multi‐user interference (MUI) and imperfect channel ...
Jeng‐Shin Sheu, Chun‐Yu Ho
wiley +1 more source
Electronics Letters, Volume 61, Issue 1, January/December 2025.In this letter, we report that hybrid beamforming with double phase shifters in mmWave dual‐functional radar‐communication system improves the spectral efficiency of a multi‐antenna user and achieves target detection. ABSTRACT In this letter, we propose a joint communication and sensing scheme in millimetre wave (mmWave) dual‐functional radar ...
Guilu Wu +3 more
wiley +1 more source
Optimal Beamforming for Multi‐Functional Integrated Sensing, Communication, and Powering Systems
Electronics Letters, Volume 61, Issue 1, January/December 2025.This letter investigates the beamforming design for an emerging integrated sensing, communication, and powering (ISACP) system, where a multi‐functional transmitter handles sensing, data communication, and power transfer tasks. Our goal is to minimize the sensing matching error while ensuring the communication and energy harvesting constraints at each ...
Ping Sun, Haibo Dai, Baoyun Wang
wiley +1 more source
Machine Learning Inspired Hybrid Precoding for Wideband Millimeter-Wave Massive MIMO Systems
IEEE Access, 2019 Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) has already been considered as a promising solution to meet the requirement of the higher data rate for the future Internet of Things (IoTs). Hybrid precoding is an effective solution
Talha Mir +4 more
doaj +1 more source
Hybrid Precoding Design for MIMO System With One-Bit ADC Receivers
IEEE Access, 2018 When wireless transmission is performed over the bandwidth in the order of a gigahertz, high-resolution analog-to-digital converters (ADCs), and the large number of radio frequency chains significantly increase the power consumption.
Qitong Hou +3 more
doaj +1 more source
Adaptive Beam Splitting-Based Broadband Hybrid Precoding for Terahertz Massive MIMO. [PDF]
Sensors (Basel), 2023 Xu L, Liu Y, Chang J, Fang H, Li X.
europepmc +1 more source