Performance Analysis of Two-Hop Cooperative MIMO transmission with Relay Selection in Rayleigh Fading Channel

TL;DR

This paper analyzes the bit error rate performance of two-hop cooperative MIMO systems with relay selection over Rayleigh fading channels, considering multiple relays, antennas, and OSTBC coding.

Contribution

It provides an end-to-end BER analysis for dual-hop relay systems with relay selection and multiple antennas, highlighting the impact of OSTBC and relay selection.

Findings

Relay selection improves BER performance.

Multiple antennas at source enhance communication reliability.

End-to-end BER performance is significantly affected by relay and antenna configurations.

Abstract

Wireless relaying is one of the promising solutions to overcome the channel impairments and provide high data rate coverage that appears for beyond 3G mobile communications. In this paper we present an end to end BER performance analysis of dual hop wireless communication systems equipped with multiple decode and forward relays over the Rayleigh fading channel with relay selection. We select the best relay based on end to end channel conditions. We apply orthogonal space time block coding (OSTBC) at source, and also present how the multiple antennas at the source terminal affects the end to end BER performance. This intermediate relay technique will cover long distance where destination is out of reach from source.