LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks

Ioana M. Marcu, C. Voicu, S. Halunga, R. Preda
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引用次数: 0

Abstract

In multiuser wireless communication systems, signal recovery, even at low BER is a relevant factor for ensuring a safe and reliable communication. Efforts for interference minimization include multiple analysis of source coding/decoding techniques, channel coding/decoding techniques and multiuser detection algorithms. This paper illustrates the improvement brought by LDPC technique in SS systems when AWGN and Rayleigh/Nakagami-m fading occur on communication channel. Performances are evaluated for different sets of spreading sequences (Walsh-Hadamard, Kasami and PN) and based on the simulation results several conclusions are highlighted and further improvement will be proposed for fading effects reduction and interference minimization.
MIMO-CDMA无线网络中LDPC编码的衰落抑制性能
在多用户无线通信系统中,即使在低误码率下,信号恢复也是确保通信安全可靠的一个相关因素。干扰最小化的努力包括对源编码/解码技术、信道编码/解码技术和多用户检测算法的多重分析。本文阐述了在通信信道上出现AWGN和Rayleigh/Nakagami-m衰落时,LDPC技术对SS系统的改进作用。对不同扩频序列(Walsh-Hadamard, Kasami和PN)的性能进行了评估,并根据仿真结果强调了几个结论,并提出了进一步的改进措施,以减少衰落影响和最小化干扰。
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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