On the Performance of STAR-RIS-Aided NOMA at Finite Blocklength

被引：13

作者：

Karim, Farjam ^{[1
]}

Singh, Sandeep Kumar ^{[1
]}

Singh, Keshav ^{[1
]}

Prakriya, Shankar ^{[2
]}

Flanagan, Mark F. ^{[3
]}

机构：

[1] Natl Sun Yat Sen Univ, Inst Commun Engn, Kaohsiung 804, Taiwan

[2] Indian Inst Technol Delhi, Dept Elect Engn, New Delhi 110016, India

[3] Univ Coll Dublin, Sch Elect & Elect Engn, Dublin 4, Ireland

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2023年 / 12卷 / 05期

关键词：

NOMA; Signal to noise ratio; Wireless communication; Fading channels; Downlink; System performance; Symbols; Finite blocklength communication; non-orthogonal multiple access; simultaneous refracting; transmitting and reflecting reconfigurable intelligent surface (STAR-RIS);

D O I：

10.1109/LWC.2023.3247400

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Simultaneous refracting/transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) has emerged as a potential technology for future-generation wireless communication that enhances the signal quality and provides 360 degrees coverage area. In this letter, we provide a finite blocklength (FBL) analysis of a STAR-RIS-aided downlink communication system with non-orthogonal multiple access (NOMA), where the base station (BS) transmits a superimposed signal to two users with the aid of a STAR-RIS. First, we derive the probability density function (PDF) and cumulative distribution function (CDF) of the signal-to-interference-plus-noise ratio (SINR) of each user, and then we analyze the system performance by deriving analytical expressions for their block error rate (BLER) and goodput. Finally, using Monte-Carlo simulations, we validate the accuracy of the derived analytical expressions, and highlight the impact of key system parameters such as blocklength, and the number of refracting and reflecting elements on the system performance.

引用

页码：868 / 872

页数：5

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