GLDPC-PC Codes for MIMO Systems with Iterative Detection and Decoding

TL;DR

This paper introduces GLDPC-PC codes, combining polar-like component codes with GLDPC structures, to enhance MIMO system performance through iterative detection and decoding, reducing latency and improving error rates.

Contribution

The paper presents a novel integration of polar-like codes into GLDPC structures, enabling low-latency, high-performance iterative decoding in MIMO systems.

Findings

Significant performance improvements in MIMO systems with GLDPC-PC codes.

Effective iterative belief propagation decoding with low error floors.

Applicability of the proposed scheme to various communication scenarios.

Abstract

In this work, we propose the integration of GLDPC codes with short polar-like component codes, termed GLDPC codes with polar component codes (GLDPC-PC). This approach leverages the good distance properties of polar-like codes and mitigates their high decoding latency in long block lengths. A recently proposed soft-input soft-output decoder for polar-like codes enables effective iterative belief propagation decoding for GLDPC-PC, ensuring a low error floor under additive white Gaussian noise channels. Simulation results demonstrate that GLDPC-PC codes achieve significant performance improvements in multiple-input multiple-output systems with iterative detection and decoding (IDD). The proposed GLDPC-PC codes and the IDD scheme can be applied to various scenarios.