Results 41 to 50 of about 5,704 (194)
IEEE Access, 2020 Reliable communication between the primary and the secondary side is a challenge for simultaneous wireless information and power transfer (SWIPT) system.
Jie Wu +6 more
doaj +1 more source
Secrecy Wireless Information and Power Transfer in OFDMA Systems
, 2015 In this paper, we consider simultaneous wireless information and power transfer (SWIPT) in orthogonal frequency division multiple access (OFDMA) systems with the coexistence of information receivers (IRs) and energy receivers (ERs).
Liu, Yuan, Zhang, Meng, Zhang, Rui
core +1 more source
Distributed Beamforming in MISO SWIPT System
IEEE Transactions on Vehicular Technology, 2017 In previous works on simultaneous wireless information and power transfer (SWIPT) multiple-input single-output (MISO) system with multiple users, beamforming requires all the transmitters know the channel state information (CSI) of the whole system. We relax it so that it is a practical assumption: Each transmitter only knows its own CSI to all the ...
Renhai Feng, Mingjun Dai, Hui Wang 0022
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Non-orthogonal multiple access wireless energy harvesting cooperative system
Dianxin kexue, 2021 Non-orthogonal multiple access (NOMA) has recently attracted wide attention as a promising multiple access technology adopted in 5G cellular networks.In order to improve the spectrum efficiency, coverage and anti-noise performance of NOMA technology ...
Xiaoping JIN +3 more
doaj +2 more sources
Jointly Optimal Spatial Channel Assignment and Power Allocation for MIMO SWIPT Systems
, 2017 The joint design of spatial channel assignment and power allocation in Multiple Input Multiple Output (MIMO) systems capable of Simultaneous Wireless Information and Power Transfer (SWIPT) is studied. Assuming availability of channel state information at
Alexandropoulos, George C. +1 more
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Impartial SWIPT-Assisted User Cooperation Schemes [PDF]
IEEE Transactions on Wireless Communications, 2020 31 pages, 6 ...
Weiyu Chen +4 more
openaire +2 more sources
Robust Spectral and Energy Efficiency Tradeoff for RIS‐Aided Multi‐User Communication
IET Communications, Volume 20, Issue 1, January/December 2026.In this work, an RIS‐aided multi‐user network with imperfect CSI is investigated. Correspondingly, we focus on balancing SE and EE through the collaborative design of the base station (BS)'s precoding matrix and the RIS's phase shifts, which consider the transmit power budget and the channel uncertainties constraints.
Xiandeng He, Yilin Wang, Shun Zhang
wiley +1 more source
Joint Sensor Clustering and Power Allocation in Wireless Body Area Networks Based on NOMA
Healthcare Technology Letters, Volume 13, Issue 1, January/December 2026.This paper addresses an optimization problem for the NOMA assisted wireless body area networks. A joint sensor clustering and power allocation algorithm is proposed to maximize the system sum throughput. ABSTRACT With the transformation of modern medical care towards a prevention‐centred model and the growing demand for high‐density sensor deployments ...
Danhao Deng, Dawei Liu, Jiayue Li
wiley +1 more source
International Journal of TechnologyThis paper examines the performance of a half-duplex wireless sensor network (WSN) by using cooperative non-orthogonal multiple access (NOMA) integrated with simultaneous wireless information and power transfer (SWIPT) over Rayleigh fading channel to ...
Abdul Ali Khan +2 more
doaj +1 more source
Wireless Powered Communication: Opportunities and Challenges
, 2014 The performance of wireless communication is fundamentally constrained by the limited battery life of wireless devices, whose operations are frequently disrupted due to the need of manual battery replacement/recharging.
Bi, Suzhi, Ho, Chin Keong, Zhang, Rui
core +1 more source