Results 71 to 80 of about 5,704 (194)

Outage Analysis for SWIPT-Enabled Two-Way Cognitive Cooperative Communications

, 2017
In this paper, we study a cooperative cognitive radio network (CCRN) where the secondary user-transmitter (SU-Tx) assists bi-directional communication between a pair of primary users (PUs) following the principle of two-way relaying.
Brown, André EX, Ch'ng, Quee-Lim, Currie, Michael, Grundy, Laura J, Hokanson, Jim, Javer, Avelino, Kerr, Rex, Lee, Chee Wai, Li, Chris, Li, Kezhi, Schafer, William R, Yemini, Eviatar   +11 more
core   +3 more sources

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, Saif Al‐Kuwari, Aiman Erbad   +2 more
wiley   +1 more source

Enhanced SWIPT With Cooperative Relaying for Energy Efficient and Reliable NOMA-Based Underwater Acoustic Sensor Networks

IEEE Access
Non-orthogonal multiple access (NOMA) based underwater acoustic sensor networks (UASNs) face several critical challenges, including limited bandwidth, energy constraints, and unreliable communication links. To address these issues, we propose an enhanced
R. Deepa, V. P. Harigovindan, Veerapu Goutham, Shaeen Kalathil   +3 more
doaj   +1 more source

On the Capacity of SWIPT Systems with a Nonlinear Energy Harvesting Circuit

, 2017
In this paper, we study information-theoretic limits for simultaneous wireless information and power transfer (SWIPT) systems employing a practical nonlinear radio frequency (RF) energy harvesting (EH) receiver.
Jamali, Vahid, Morsi, Rania, Ng, Derrick Wing Kwan, Schober, Robert   +3 more
core   +1 more source

Buffer‐Aided Cooperative NOMA: An Energy‐Efficient Design

IET Communications, Volume 19, Issue 1, January/December 2025.
In this paper, we propose a buffer‐aided cooperative NOMA‐SWIPT scheme for multi‐user systems. We consider the optimization of the long‐term power minimization problem under the imperfect channel state information. Simulation results reveal the trade‐off relationship between the average power consumption and the average queuing delay.
Baoyi Xu, Li Zhao, Yunpeng Feng, Long Yang, Yuchen Zhou, Bingtao He, Lu Lv   +6 more
wiley   +1 more source

Max-min Fair Beamforming for SWIPT Systems with Non-linear EH Model

, 2017
We study the beamforming design for multiuser systems with simultaneous wireless information and power transfer (SWIPT). Employing a practical non-linear energy harvesting (EH) model, the design is formulated as a non-convex optimization problem for the ...
Boshkovska, Elena, Chen, Xiaoming, Dai, Linglong, Ng, Derrick Wing Kwan, Schober, Robert   +4 more
core   +1 more source

Scheme Design of SR‐DCSK‐WPC System With Energy Buffer in RIS‐Assisted Design

IET Communications, Volume 19, Issue 1, January/December 2025.
This research examines the performance improvement of chaotic communication assisted by reconfigurable intelligent surface. Currently, our paper explores the time switching scheme of SWIPT system and the time allocation characteristics of short reference technology, and reconstructs the implementation scheme of the time allocation coefficient.
Gongquan Zhang, Yu Ren, Xiaoting Chen, Xulai Zhu   +3 more
wiley   +1 more source

On Age of Information and Energy‐Transfer in a STAR‐RIS‐Assisted System

IET Communications, Volume 19, Issue 1, January/December 2025.
This paper explores a wireless sensor network that simultaneously charges energy harvesting devices and minimizes the Age of Information (AoI) for time‐sensitive users. A multi‐antenna base station and simultaneously‐transmitting‐and‐reflecting reconfigurable intelligent surface (STAR‐RIS) are used to optimize power transmission and status updates ...
Mohammad Reza Kavianinia, Mohammad Mehdi Setoode, Mohammad Javad Emadi   +2 more
wiley   +1 more source

Energy-Neutral Operation Based on Simultaneous Wireless Information and Power Transfer for Wireless Powered Sensor Networks

Energies, 2019
For energy-neutral operation (ENO) of wireless sensor networks (WSNs), we apply a wireless powered communication network (WPCN) to a WSN with a hierarchical structure.
Hyun-Ho Choi, Jung-Ryun Lee
doaj   +1 more source

MIMO Pinching-Antenna-Aided SWIPT

IEEE Wireless Communications Letters
Pinching-antenna systems (PASS) have recently emerged as a promising technology for improving wireless communications by establishing or strengthening reliable line-of-sight (LoS) links by adjusting the positions of pinching antennas (PAs). Motivated by these benefits, we propose a novel PASS-aided multi-input multi-output (MIMO) system for ...
Haoyun Li, Zhonghao Lyu, Yulan Gao, Ming Xiao, H. Vincent Poor   +4 more
openaire   +2 more sources