Distributed Coded Modulation Schemes for Multiple Access Relay Channels

TL;DR

This paper explores distributed coded modulation schemes for multiple access relay channels, deriving tight upper bounds on bit error probability with MLSD, advancing understanding of performance limits in such systems.

Contribution

It introduces and analyzes network nest coded modulation schemes for relay channels, providing analytical bounds and demonstrating their asymptotic tightness at high SNR.

Findings

Derived upper bounds on bit error probability with MLSD

Showed bounds are asymptotically tight at high SNR

Analyzed performance of distributed convolutional coding schemes

Abstract

In this paper, we investigate network nest coded modulation schemes for multiple access relay channels. The performance of the distributed systems which are based on distributed convolutional codes with network coded modulation is presented. An analytical upper bound on bit error probability performance for the studied distributed systems with Maximum Likelihood Sequence Detection (MLSD) is derived. The constructured bounds for the investigated systems are shown to be asymptotically tight for increasing channel Signal-to-Noise Ratio (SNR) values