Error Probability of DPPM UWB Systems over Nakagami Fading Channels with Receive Diversity
Error Probability of DPPM UWB Systems over Nakagami Fading Channels with Receive Diversity
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DOI：
10.1155/2011/761369
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发表时间：
2011-03
影响因子：
2.6
通讯作者：
Hao Zhang;Hao Zhang;Tingting Lu;Jingjing Wang;T. Gulliver
中科院分区：
文献类型：
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作者：
Hao Zhang;Hao Zhang;Tingting Lu;Jingjing Wang;T. Gulliver
研究了超宽带（UWB）通信系统中的差分脉冲位置调制（DPPM）。UWB系统中的DPPM信号的典型格式是从脉冲位置调制（PPM）信号的格式导出的。推导了在加性白色高斯噪声（AWGN）和Nakagami衰落信道下具有接收分集的超宽带DPPM系统的误码率。考虑单用户和多用户环境。仿真结果表明，DPPM的误帧率优于PPM，接收分集可以显著改善系统的误帧率性能。
We consider differential-pulse position modulation (DPPM) in an ultra wideband (UWB) communication system. A typical format for a DPPM signal in a UWB system is derived from that of a pulse position modulation (PPM) signal. The error probabilities of a UWB DPPM system with receive diversity over additive white Gaussian noise (AWGN) and Nakagami fading channels are derived. Both single-user and multiuser environments are considered. Performance results are presented which show that the frame error rate (FER) with DPPM is better than that with PPM, and the FER performance can be improved significantly by receive diversity.