Diversity-Multiplexing Tradeoff of Cooperative Communication with Linear Network Coded Relays

TL;DR

This paper analyzes a network coding scheme for cooperative wireless communication, demonstrating it achieves full diversity with a slight multiplexing rate reduction, outperforming conventional methods in diversity-multiplexing tradeoff.

Contribution

It introduces a linear network coding protocol for cooperative communication that attains full diversity order while maintaining competitive multiplexing rates.

Findings

Achieves full diversity order with the proposed scheme.

Outperforms conventional cooperation in diversity-multiplexing tradeoff.

Provides a tradeoff analysis for the proposed network coding protocol.

Abstract

Network coding and cooperative communication have received considerable attention from the research community recently in order to mitigate the adverse effects of fading in wireless transmissions and at the same time to achieve high throughput and better spectral efficiency. In this work, we analyze a network coding scheme for a cooperative communication setup with multiple sources and destinations. The proposed protocol achieves the full diversity order at the expense of a slightly reduced multiplexing rate compared to existing schemes in the literature. We show that our scheme outperforms conventional cooperation in terms of the diversity-multiplexing tradeoff.