Performance Evaluation of Advanced Relaying Protocols in Large Wireless Networks

TL;DR

This paper evaluates the performance of advanced cooperative full-duplex relaying protocols in large wireless networks using stochastic geometry, highlighting scenarios where relay cooperation offers significant benefits.

Contribution

It provides a comprehensive numerical analysis of decode-and-forward, noisy-network coding, and mixed schemes in large networks, revealing their relative advantages under various conditions.

Findings

Relay cooperation improves network reliability in specific regimes.

Noisy-network coding shows robustness against interference.

Certain protocols outperform others depending on network parameters.

Abstract

This paper studies the performance of some state-of-the-art cooperative full-duplex relaying protocols in the context of a large wireless network modelled using stochastic geometry tools. We investigate the outage behaviour for different cooperative schemes, namely, decode-and-forward, noisy-network coding and mixed noisy-network coding, considering fading, path loss and interference from other sources and relays. Due to the high complexity of the network topology and the protocols considered, a closed-form analysis is not possible, so our study is performed through extensive but careful numerical simulations, sweeping a large number of relevant parameters. Several scenarios of particular interest are investigated. In this way, insightful conclusions are drawn regarding the network regimes in which relay-assisted cooperation is most beneficial and the potential gains that could be achieved through it.