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'Errors-and-Erasures' decoding performance of RS coded DS-CDMA using M-ary orthogonal signalling

机译:使用 m 正交信令的Rs编码Ds-CDma的“错误和擦除”解码性能

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摘要

In this contribution we investigate the performance of RS coded DS-CDMA using -ary orthogonal signalling over multipath Rayleigh fading channels. 'Errors-And-Erasures (EAE)' RS decoding is considered, where erasures are declared based on the joint Maximum Output and Ratio Threshold Test (MOR-TT). Two classes of diversity reception techniques suitable for noncoherent -ary detection are invoked, namely either Equal Gain Combining (EGC) or Selection Combining (SC) and their related performance is evaluated for both uncoded and coded DS-CDMA systems. The performance of the proposed MOR-TT technique is compared to that of the Ratio Threshold Test (RTT) and the Output Threshold Test (OTT), as well as that of 'Error-Correction-Only (ECO)' decoding. The numerical results show that when using EAE decoding, RS codes of a given code rate are capable of achieving a Significantly higher coding gain than without erasure information. Furthermore, the MOR-TT technique outperforms both the RTT and the OTT techniques.
机译:在此贡献中,我们研究了在多径瑞利衰落信道上使用-ary正交信令的RS编码DS-CDMA的性能。考虑“错误和擦除(EAE)” RS解码,其中基于联合最大输出和比率阈值测试(MOR-TT)声明擦除。调用了两类适用于非相干二进制检测的分集接收技术,即等增益组合(EGC)或选择组合(SC),并针对未编码和编码的DS-CDMA系统评估了它们的相关性能。将提出的MOR-TT技术的性能与比率阈值测试(RTT)和输出阈值测试(OTT)以及“仅纠错”(ECO)解码的性能进行比较。数值结果表明,当使用EAE解码时,给定码率的RS码与没有擦除信息的情况相比,能够显着提高编码增益。此外,MOR-TT技术优于RTT和OTT技术。

著录项

  • 作者

    Yang L-L.; Hanzo L.;

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  • 年度 2001
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  • 原文格式 PDF
  • 正文语种 {"code":"it","name":"Italian","id":21}
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