Performance Assessment for LDM Transmission Based on DVB Satellite Standard

IF 3.2 1区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Broadcasting Pub Date : 2024-02-29 DOI:10.1109/TBC.2024.3349789

Pansoo Kim;Hyuncheol Park

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引用次数: 0

Abstract

Variable Coding and Modulation (VCM), one of the Orthogonal Multiple Access (OMA) schemes and also known as channel adaptive Time-sharing Division Multiplexing (TDM) in satellite broadcasting and communication systems, has been widely utilized to mitigate heavy rain fading in Ku/Ka-band to enhance link availability in DVB-S2x (Digital Video Broadcasting - Satellite 2nd generation eXtension) standard. For next-generation satellite broadcasting and communication, we exploit Layer Division Multiplexing (LDM) technology, which is also referred to as Non-Orthogonal Multiple Access (NOMA). We conduct a performance assessment of VCM in terms of the total achievable data rate under Additive White Gaussian Noise (AWGN) channel and nonlinear satellite High Power Amplifier (HPA) impairments. In addition, we consider realistic Radio Frequency (RF) inaccuracies characterized by timing and carrier offsets. Through the identification of the performance impacts, we propose a robust carrier phase synchronization scheme to mitigate phase noise impairment. Numerical results demonstrate that our proposed scheme can enhance Packet Error Rate (PER) performance compared to the conventional one in a phase noise environment.

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基于 DVB 卫星标准的 LDM 传输性能评估

可变编码和调制（VCM）是卫星广播和通信系统中的正交多路存取（OMA）方案之一，也被称为信道自适应分时多路复用（TDM），在 DVB-S2x（数字视频广播-卫星第二代扩展）标准中被广泛用于缓解 Ku/Ka 波段的暴雨衰落，以提高链路可用性。对于下一代卫星广播和通信，我们采用了层分复用（LDM）技术，该技术也被称为非正交多址接入（NOMA）。我们根据加性白高斯噪声（AWGN）信道和非线性卫星高功率放大器（HPA）损伤条件下的总可实现数据速率对 VCM 进行了性能评估。此外，我们还考虑了以定时和载波偏移为特征的现实射频（RF）误差。通过识别性能影响，我们提出了一种稳健的载波相位同步方案，以减轻相位噪声的损害。数值结果表明，与相位噪声环境下的传统方案相比，我们提出的方案可以提高数据包错误率（PER）性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Broadcasting 工程技术-电信学

CiteScore

9.40

自引率

31.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Society’s Field of Interest is “Devices, equipment, techniques and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.” In addition to this formal FOI statement, which is used to provide guidance to the Publications Committee in the selection of content, the AdCom has further resolved that “broadcast systems includes all aspects of transmission, propagation, and reception.”