Performance Analysis of IRS-Assisted and Wireless Power Transfer Enabled ISAC Systems

被引：0
作者：
Zhang, Bingxin [1 ]
Yang, Kun [1 ,2 ]
Wang, Kezhi [3 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu, Sichuan, Peoples R China
[2] Univ Essex, Sch Comp Sci & Elect Engn, Colchester, England
[3] Brunel Univ London, Dept Comp Sci, London, England
来源：
IEEE CONFERENCE ON GLOBAL COMMUNICATIONS, GLOBECOM | 2023年
基金：
中国国家自然科学基金;
关键词：
Intelligent reflecting surface (IRS); wireless power transfer (WPT); integrated sensing and communication (ISAC); performance analysis;
D O I：
10.1109/GLOBECOM54140.2023.10437603
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：
Empowering sensing capabilities is becoming increasingly important in future wireless networks. Meanwhile, intelligent reflecting surface (IRS) and wireless power transfer (WPT) have also received widespread attention as two key technologies to improve network spectrum efficiency and solve device energy shortage issues, respectively. To this end, we investigate an IRS-assisted and WPT-enabled integrated sensing and communication (ISAC) system. Specifically, a base station (BS), with the assistance of the IRS, has the dual functions of radar sensing as well as receiving the data information transmitted by Internet of Things (IoT) devices. IoT devices can charging itself by harvesting the power of radar signals transmitted from the BS. The sensing performance is studied by deriving an exact closed-form expression and an upper bound of the average radar estimation information rate. In addition, we derive an exact expression for the average data information rate to evaluate the communication performance of the system. The simulation results reveal that increasing the number of reflecting elements of the IRS can simultaneously enhance the radar sensing and communication performance.
引用
收藏
页码：1012 / 1017
页数：6
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