Geometrical-based statistical macrocell channel model for mobile environments
Geometrical-based statistical macrocell channel model for mobile environments
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DOI：
10.1109/26.990911
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发表时间：
2002-08
期刊：
影响因子：
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通讯作者：
P. Petrus;Jeffrey H. Reed;T. Rappaport
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文献类型：
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作者：
P. Petrus;Jeffrey H. Reed;T. Rappaport
我们开发了一个统计几何传播模型的宏蜂窝移动的环境，提供了统计的多径分量，这是需要测试自适应阵列算法的蜂窝应用程序的到达角（AOA）。该信道模型假设传播信号的每个多径分量仅经历一次从发射机行进到接收机的反弹，并且散射对象均匀地位于围绕移动的的圆内。这种基于几何的单次反弹宏小区（GBSBM）信道模型提供了表征信道的三个重要参数：多径分量的功率、分量的到达时间（TOA）和分量的AOA。利用GBSBM模型，我们分析了定向天线在基站上的衰落包络的影响。如果在基站处采用定向天线，则衰落包络的电平交叉率减小，并且包络相关性显著增加。
We develop a statistical geometric propagation model for a macrocell mobile environment that provides the statistics of angle-of-arrival (AOA) of the multipath components, which are required to test adaptive array algorithms for cellular applications. This channel model assumes that each multipath component of the propagating signal undergoes only one bounce traveling from the transmitter to the receiver and that scattering objects are located uniformly within a circle around the mobile. This geometrically based single bounce macrocell (GBSBM) channel model provides three important parameters that characterize a channel: the power of the multipath components, the time-of-arrival (TOA) of the components, and the AOA of the components. Using the GBSBM model, we analyze the effect of directional antennas at the base station on the fading envelopes. The level crossing rate of the fading envelope is reduced and the envelope correlation increases significantly if a directional antenna is employed at the base station.