Low-complexity Receiver for Multi-Level Polar Coded Modulation in Non-Orthogonal Multiple Access

TL;DR

This paper introduces a low-complexity receiver for multi-level polar coded modulation in NOMA, enhancing rate performance while reducing computational demands compared to existing methods.

Contribution

It proposes a novel NOMA system combining multi-level coded modulation and polar codes with reduced computational complexity.

Findings

Computational complexity decreases compared to state-of-the-art solutions.

Trade-off between error rate performance and computational complexity.

Enhanced multiple-access achievable rate in NOMA scenarios.

Abstract

Non-orthogonal multiple access (NOMA) schemes have been proved to increase the multiple-access achievable rate with respect to orthogonal multiple access (OMA). In this paper we propose a novel communication system that combines multi-level coded modulation and polar codes in a NOMA scenario. Computational complexity decreases with the proposed scheme with respect to state-of-the-art solutions. We also highlight the trade-off between error rate performance and computational complexity.