Performance analysis of uplink CDMA cellular systems based on the large system method
Performance analysis of uplink CDMA cellular systems based on the large system method
复制标题
基于大系统法的上行CDMA蜂窝系统性能分析
DOI：
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发表时间：
2011
影响因子：
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通讯作者：
Hao, Li
中科院分区：
文献类型：
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作者：
Fan, Ping-Zhi;Yu, Kai;Hao, Li
从大系统分析的角度出发，研究了CDMA蜂窝系统上行链路在大、小尺度衰落下的性能。首先分析了小区间干扰和小区内多址干扰，然后推导了信干噪比，其结果只与小区负载、用户功率和信道系数有关。最后，分析了系统的误比特率，仿真结果表明，随着小区负载的增加，误比特率增加，吞吐量降低，而频谱效率则单调增加.
The performance of uplink of CDMA cellular systems with large and small scale fading was investigated based on the large system analysis.The intra-cell multiple access interference was firstly analyzed as well as the inter-cell in-terference.Then the signal to interference and noise ratio was deduced,the result of which was only dependent on the cell load,user power and channel coefficient.Finally,the bit error rate,throughput and spectrum efficiency were analyzed,which were confirmed by simulations.The simulation results show that as the cell load increases,the bit error rate in-creases and the throughput decreases.However,the spectrum efficiency increases monotonously.