The shadow affect is logarithmic normal distribution, and the multi-path fading is Rayleigh distribution.
阴影效应服从对数正态分布，而多径衰落服从瑞利分布。
The first chapter introduced the characteristics of the wireless channel, the small-scale fading model, multi-path fading model and WSSUS channel model.
本文第一章绪论首先分析了无线信道的特性，介绍了小尺度衰落模型，多径衰落模型以及WSSUS信道模型。
Spreading code design and joint detection are two efficient ways to increase CDMA system capacity in multi-path fading channels.
在多径衰落信道CD MA系统中，扩频码设计与联合检测为提高系统容量的两个重要手段。
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