Performance Analysis for STAR-RIS Assisted SWIPT System over Rayleigh Fading Channel

被引：1
作者：
Zhang, Heng [1 ]
Nie, Jiangtian [2 ]
Yu, Yantao [1 ]
Xiong, Zehui [3 ]
Jiang, Weiheng [1 ]
Niyato, Dusit [2 ]
机构：
[1] Chongqing Univ, Sch Microelect & Commun Engn, Chongqing, Peoples R China
[2] Nanyang Technol Univ, Sch Comp Sci & Engn, Singapore, Singapore
[3] Singapore Univ Technol & Design, Pillar Informat Syst Technol & Design, Singapore, Singapore
来源：
ICC 2023-IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS | 2023年
关键词：
STAR-RIS; SWITP; outage probability; Rayleigh fading channel; ANALYTICAL FRAMEWORK; NETWORKS; INFORMATION; NOMA; MIMO;
D O I：
10.1109/ICC45041.2023.10278936
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, the performance of a multiple-insingle-output (MISO) simultaneous wireless information and power transfer (SWIPT) system assisted by simultaneous transmitting and reflecting reconfigurable intelligent surface (STARRIS) under fading channel is studied. Firstly, the joint BS active beamforming and STAR-RIS passive beamforming are discussed. Based on that and using the Gamma approximation method, the statistical characteristics of the equivalent cascaded channels for BS-IR and BS-ER assisted by STAR-RIS are analyzed and derived, including the first-order and second-order moments, as well as the distribution function (CDF) and probability density function (PDF). Furthermore, we define and derive the rate outage probability of IR and power outage probability of ER and their approximate expressions at high SNR. Finally, the theoretical analysis results are verified by numerical simulations, and it is confirmed that the number of STAR-RIS units has positive effects on improving the system outage performance.
引用
收藏
页码：1468 / 1473
页数：6
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