Constellation design of 32-QAM by scaling two square 16-QAMs with dual-level coding

IF 4.1 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

ICT Express Pub Date : 2025-01-31 DOI:10.1016/j.icte.2025.01.008

Minhui Yu, Seunggi Choi, Hosung Park

引用次数: 0

Abstract

In this paper, we propose a 32-quadrature amplitude modulation (QAM) constellation to achieve high spectral efficiency, along with dual-level coding (DLC) and successive cancellation decoding (SCD). The proposed odd-bit 32-QAM constellation is designed by duplicating 16-QAM and scaling and is referred to as duplicate-and-scale QAM (DaSQAM). Analysis of bit-interleaved coded modulation (BICM) capacity demonstrates that the DaSQAM with the DLC and the SCD is better than other conventional QAMs. When using low-density parity-check (LDPC) codes, the DaSQAM shows enhanced performance in terms of bit error rate (BER) and block error rate (BLER) over the conventional QAMs.

2018 The Korean Institute of Communications and Information Sciences. Publishing Services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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来源期刊

ICT Express Multiple-

CiteScore

10.20

自引率

1.90%

发文量

167

审稿时长

35 weeks

期刊介绍： The ICT Express journal published by the Korean Institute of Communications and Information Sciences (KICS) is an international, peer-reviewed research publication covering all aspects of information and communication technology. The journal aims to publish research that helps advance the theoretical and practical understanding of ICT convergence, platform technologies, communication networks, and device technologies. The technology advancement in information and communication technology (ICT) sector enables portable devices to be always connected while supporting high data rate, resulting in the recent popularity of smartphones that have a considerable impact in economic and social development.