Some new LDPC-coded orthogonal modulation schemes for high data rate transmissions in navigation satellite systems

IF 4.1 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS ICT Express Pub Date : 2024-06-01 DOI:10.1016/j.icte.2024.03.002

Hyunwoo Cho , Jae Min Ahn , Jae Hee Noh , Hong-Yeop Song

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Abstract

In this paper, we design some new LDPC-coded orthogonal modulation (OM) schemes for high data rate transmissions (HDRT) in the navigation satellite systems. We analyze their error-performance utilizing soft-decision bit metrics and compare them with those of L61 and L62 signals in the quasi-zenith satellite system (QZSS) for centimeter-level augmentation services (CLAS). Compare to the L62 signals of QZSS, both schemes have higher data rates (14.6% increase) and essentially the better error performance at high SNR region. At the region where frame error rate (FER) $= 1 0^{- 3}$ , one of the proposed schemes has better error performance of 1.4 dB in terms of carrier-to-noise ratio $(C / N_{0})$ .

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用于导航卫星系统高数据速率传输的一些新 LDPC 编码正交调制方案

本文为导航卫星系统中的高数据速率传输（HDRT）设计了一些新的 LDPC 编码正交调制（OM）方案。我们利用软判定比特指标分析了这些方案的误差性能，并将其与准天顶卫星系统（QZSS）中用于厘米级增强服务（CLAS）的 L61 和 L62 信号进行了比较。与 QZSS 的 L62 信号相比，两种方案的数据传输率都更高（提高了 14.6%），而且在高信噪比区域的误差性能也更好。在帧误码率（FER）=10-3 的区域，就载噪比（C/N0）而言，其中一种拟议方案的误码性能更好，达到 1.4 dB。

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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.