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Error-bound formulation for multichannel reception of M-DPSK and pilot-aided M-PSK over Rayleigh-fading channels with postdetection combining

机译:具有后检测组合的瑞利衰落信道上M-DPSK和导频辅助M-PSK的多信道接收的误差约束公式

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摘要

Upper bounds for symbol-error probability are developed for multichannel reception of M-ary phase-shift keying (M-PSK) over frequency-flat Rayleigh-fading channels. Differential coherent demodulation of differentially encoded M-PSK (M-DPSK), pilot-tone aided coherent demodulation of M-PSK (PTA M-CPSK) and pilot-symbol aided coherent demodulation of M-PSK (PSA M-CPSK) are considered in the formulation. The bounds enable the investigation of the effects of fading correlation and unequal average power level between channels using postdetection diversity reception with maximal-ratio combining. Error-performance degradation due to imperfect demodulation effects, such as Doppler spread in M-DPSK schemes, noisy reference signals in PTA M-CPSK, and PSA M-CPSK schemes can be taken into account in the formulation. Exact bit-error probabilities for both binary and quaternary phase-shift keying are also derived.
机译:为在频率平坦瑞利衰落信道上的多进制相移键控(M-PSK)的多通道接收开发了符号错误概率的上限。考虑了差分编码M-PSK(M-DPSK)的差分相干解调,M-PSK的导频音辅助相干解调(PTA M-CPSK)和M-PSK的导频码元辅助相干解调(PSA M-CPSK)在配方中。使用后检测分集接收和最大比率组合,边界可以研究信道之间的衰落相关性和平均功率电平不相等的影响。在公式中可以考虑由于不完美的解调效应(例如M-DPSK方案中的多普勒扩展,PTA M-CPSK中的噪声参考信号和PSA M-CPSK方案)导致的错误性能下降。还推导出了二进制和四相相移键控的精确误码率。

著录项

  • 作者

    Chow, YC; McGeehan, JP;

  • 作者单位
  • 年度 2004
  • 总页数
  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
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