Microcell performance evaluation in IS-95 based CDMA networks

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI:10.1109/ICUPC.1998.733640

J. Yang, M. Rajan

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引用次数: 8

Abstract

A practical CDMA microcell structure is systematically studied on both forward link and reverse link. The embedded microcell shares the same frequency and has full connectivity with the overlaying macrocell. The capacity of microcell and macrocell are derived and simulated at various traffic distributions. The microcell capacity is 1.03 to 1.12 times that of a regular cell. The capacity of the combined microcell and macrocell is 2.00 to 2.11 times that of a regular cell. The microcell and macrocell performance are also analyzed in terms of RF reliability, soft hand-off factors, interference and power levels. The macrocell RF reliability will degrade more seriously than that of the microcell. The radio hand-off factors of the microcell are about 11% higher than that of the macrocell. The average required forward traffic channel power of the microcell is about 10% less than that of the macrocell. The results show that embedding the microcell in an existing CDMA network could be a very efficient way to improve hot-spot capacity and dead-spot coverage.

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基于IS-95的CDMA网络微蜂窝性能评价

对一种实用的CDMA微蜂窝结构进行了正向链路和反向链路的系统研究。嵌入的微单元共享相同的频率，并与覆盖的大单元具有完全的连通性。推导并模拟了不同流量分布下微蜂窝和大蜂窝的容量。微电池容量是普通电池的1.03 ~ 1.12倍。结合微细胞和大细胞的容量是普通细胞的2.00 ~ 2.11倍。从射频可靠性、软切换因素、干扰和功率水平等方面分析了微蜂窝和宏蜂窝的性能。宏小区射频可靠性的下降比微小区射频可靠性的下降更为严重。微细胞的无线电切换因子比大细胞高11%左右。微单元所需的前向信道平均功率比大单元所需的前向信道平均功率低10%左右。结果表明，在现有的CDMA网络中嵌入微蜂窝是一种提高热点容量和盲区覆盖率的有效方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384)

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