Ergodic Rate Analysis and IRS Configuration for Multi-IRS Dual-Hop DF Relaying Systems

نویسندگان

چکیده

Intelligent reflecting surface (IRS) has emerged as a promising and low-cost technology for improving wireless communications by collecting dispersed radio waves redirecting them to the intended receivers. In this letter, we characterize achievable rate when multiple IRSs are utilized in manner of decode-and-forward (DF) relaying. Our performance analysis is based on Nakagami- $m$ fading model with perfect channel state information (CSI). Tight upper bound expressions ergodic derived. Moreover, compare multi-IRS DF relaying system that one single IRS confirm gain. We then optimize configuration considering numbers elements, which provides useful insights practical design.

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ژورنال

عنوان ژورنال: IEEE Communications Letters

سال: 2021

ISSN: ['1558-2558', '1089-7798', '2373-7891']

DOI: https://doi.org/10.1109/lcomm.2021.3100347