Performance Analysis for RIS-Assisted SWIPT-Enabled IoT Systems

被引：2

作者：

Zhang, Bingxin ^{[1
]}

Yang, Kun ^{[1
,2
,3
]}

Wang, Kezhi ^{[4
]}

Zhang, Guopeng ^{[5
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 611731, Peoples R China

[2] Univ Elect Sci & Technol China, Yangtze Delta Reg Res Inst, Chengdu 611731, Peoples R China

[3] Nanjing Univ, Sch Intelligent Software & Engn, Suzhou 215163, Peoples R China

[4] Brunel Univ London, Dept Comp Sci, Uxbridge UB8 3PH, England

[5] China Univ Min & Technol, Sch Comp Sci & Technol, Xuzhou 221116, Peoples R China

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2024年 / 23卷 / 08期

关键词：

Internet of Things; Wireless communication; Uplink; Simultaneous wireless information and power transfer; Downlink; Wireless sensor networks; Power system reliability; Reconfigurable intelligent surface; simultaneous wireless information and power transfer; outage probability; stochastic geometry; SIMULTANEOUS WIRELESS INFORMATION; INTELLIGENT; OPTIMIZATION; NETWORK; DESIGN; NOMA;

D O I：

10.1109/TWC.2024.3368095

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Reconfigurable intelligent surface (RIS) is a promising technology to improve the spectral and energy efficiency of Internet of Things (IoT) systems. In this paper, we investigate an RIS-assisted simultaneous wireless information and power transmission (SWIPT) system by utilizing stochastic geometry. Moreover, we consider not only the case of random phase shift, but also the case where the phase shift of the RIS are aligned to the k -th IoT device. We first derive the closed-form expressions of the uplink outage probability and the average uplink data size for the k -th IoT device under the Rayleigh channel. Then, we extend the performance analysis to the Rician fading channel and multi-antenna scenarios. Finally, extensive numerical results have been carried out to verify the effectiveness of our derived results.

引用

页码：10030 / 10043

页数：14

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