Effect of macrodiversity on average-error probabilities in a Rician fading channel with correlated lognormal shadowing
Effect of macrodiversity on average-error probabilities in a Rician fading channel with correlated lognormal shadowing
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DOI：
10.1109/26.898244
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Jingjun Zhang;V. Aalo
中科院分区：
文献类型：
--
作者：
Jingjun Zhang;V. Aalo
通过考虑基地台阴影信号的常相关模型，研究了相关对数正态阴影对微分集和宏分集窄带移动通信系统平均误差性能的影响。通过考虑相干和差相干二相移键控方案，说明了相关阴影导致的性能下降。数值计算结果表明，当蜂窝系统中的基站间隔很近时，相关阴影对系统性能的影响是不可忽视的。
The effect of correlated lognormal shadowing on the average probability of error performance of narrow-band mobile communication systems with micro- and macrodiversity reception in a Rician fading channel is studied by considering a constant correlation model for the shadowed signals at the base stations. The performance degradation due to correlated shadowing is illustrated by considering both coherent and differentially coherent binary phase-shift keying schemes. Numerical results presented show that when the base stations in a cellular system are very closely spaced, the effect of correlated shadowing on system performance cannot be ignored.