Analysis of Coverage Region for MIMO Relay Network with Multiple Cooperative DF-Relays

TL;DR

This paper analyzes the coverage region in MIMO relay networks with decode-and-forward relays, considering LOS environments and cooperative relays, revealing how propagation and relay cooperation influence capacity and coverage.

Contribution

It provides a detailed analysis of coverage regions in MIMO relay networks with cooperative relays under LOS conditions, highlighting the impact of relay cooperation on coverage extension.

Findings

Propagation environment significantly affects capacity bounds.

Cooperative relays extend coverage region compared to noncooperative scenarios.

Optimal relay placement is crucial for maximizing coverage.

Abstract

We study and analyze coverage region in MIMO communication systems for a multiple-relay network with decode-and-forward (DF) strategy at the relays. Assuming that there is a line-of-sight (LOS) propagation environment for source-relay channels and channel state information is available at receivers (CSIR), we consider the objective of maximizing coverage region for a given transmission rate and show numerically the significant effect of propagation environment on capacity bounds, optimal relay location and coverage region. Also, we study the situation in which two adjacent relays cooperate in transmission signals to the destination and show analytically that the coverage region is extended compared to noncooperative scenario.