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首页> 外文期刊>IEEE Transactions on Vehicular Technology >Performance analysis of cellular CDMA networks overfrequency-selective fading channel
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Performance analysis of cellular CDMA networks overfrequency-selective fading channel

机译：蜂窝CDMA网络超频选择性衰落信道的性能分析

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摘要

An effect of multipath fading on the performance of a cellularncode-division multiple-access (CDMA) system is analyzed in this paper. Anwide-sense stationary uncorrelated scattering (WSSUS) channel model andnthe coherent binary phase-shift keying (BPSK) with asynchronousndirect-sequence (DS) spreading signal are assumed in the analysis. Thenaverage error probability for both the forward link and reverse link ofna cellular CDMA system over a frequency-selective fading channel using anconventional correlation-type receiver and RAKE receiver are derived.nThe impact of imperfect power control and channel capacity of a cellularnCDMA system is also investigated. The closed forms of average errornprobability derived in the paper can save a lot of computation time tonanalyze the performance and channel capacity of a cellular CDMA system.nThe analytical results show that the performance and maximumntransmission rate of cellular CDMA systems degrade with an increase innthe number of simultaneous users and the number of interfering cells.nThe signal-to-interface ratio (SIR) for the reverse link derived in thisnpaper can directly describe the interrelationships among a number ofnpaths, number of users, number of interfering cells, fading factors, andnmaximum variation of a received unfaded signal
机译：本文分析了多径衰落对蜂窝码分多址（CDMA）系统性能的影响。分析中假设了广义广义静止不相关散射（WSSUS）信道模型以及具有异步直接序列（DS）扩展信号的相干二进制相移键控（BPSK）。然后推导了使用常规相关型接收机和RAKE接收机在频率选择性衰落信道上蜂窝CDMA系统前向链路和反向链路的平均误码率。n还研究了蜂窝式CDMA系统功率控制和信道容量的影响。 。本文得出的平均错误概率概率的封闭形式可以节省大量的计算时间，从而可以分析蜂窝CDMA系统的性能和信道容量。n分析结果表明，蜂窝CDMA系统的性能和最大传输速率随着信道数的增加而降低。本文得出的反向链路的信号接口比（SIR）可以直接描述多个路径，用户数量，干扰小区数量，衰落因子和最大变化量之间的相互关系。接收到的不衰减信号

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