第二章分析了无线信道的多径效应和小尺度衰落效应。
The second chapter of this paper analyzes the multipath effects and fading effects of wireless channel.
他能有效地对抗多径效应，消除符号间干扰，对抗频率选择性衰落，而且信道利用率高。
It can waken the multipath effect availably, eliminate symbol interference and fight against frequency select fading. Moreover, the channel utilization rate is high.
阴影效应服从对数正态分布，而多径衰落服从瑞利分布。
The shadow affect is logarithmic normal distribution, and the multi-path fading is Rayleigh distribution.
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