Multi-Antenna Relaying and Reconfigurable Intelligent Surfaces: End-to-End SNR and Achievable Rate

TL;DR

This paper analyzes the end-to-end SNR and achievable rate in various relay-assisted communication schemes and emerging reconfigurable intelligent surfaces technology, providing a comprehensive comparison of their performance metrics.

Contribution

It offers a unified framework for evaluating end-to-end SNR and rate across multiple relay strategies and reconfigurable surfaces, highlighting their relative advantages.

Findings

Full-duplex relays outperform half-duplex in SNR and rate.

Reconfigurable intelligent surfaces significantly enhance signal quality.

Amplify-and-forward and decode-and-forward have distinct performance trade-offs.

Abstract

In this report, we summarize the end-to-end signal-to-noise ratio and the rate of half-duplex, full-duplex, amplify-and-forward, and decode-and-forward relay-aided communications, and well as the signal-to-noise ratio and the rate of the emerging technology known as reconfigurable intelligent surfaces.