Performance analysis of uplink CDMA cellular systems based on the large system method

YU Kai1; FAN Ping-zhi2; HAO Li2

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Performance analysis of uplink CDMA cellular systems based on the large system method

更新时间：2024-10-14

- Performance analysis of uplink CDMA cellular systems based on the large system method
- Vol. 32, Issue 1, Pages: 20-26(2011)
- 作者机构：
  
  1. 中国中铁二院工程集团有限责任公司通信信号设计研究院
  2. 西南交通大学信息编码与传输四川省重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.533
- Published：2011
- 稿件说明：
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YU Kai1, FAN Ping-zhi2, HAO Li2. Performance analysis of uplink CDMA cellular systems based on the large system method[J]. 2011, 32(1): 20-26.
DOI：

YU Kai1, FAN Ping-zhi2, HAO Li2. Performance analysis of uplink CDMA cellular systems based on the large system method[J]. 2011, 32(1): 20-26. DOI：

摘要

结合大尺度和小尺度衰落

采用大系统分析方法对CDMA蜂窝系统上行链路的性能进行分析。首先分析了小区内多址干扰和小区间干扰的情况;其次推导出了通过匹配滤波器后的信干噪比值

该值只与小区负载、用户功率、信道增益有关;最后分析了系统的误码率、吞吐量和频谱效率

并通过仿真验证了分析的准确性。仿真结果发现

随着小区负载的增大

系统的误码率增大

吞吐量下降

但频谱效率有所提高。

Abstract

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.

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Related Institution

Department of Electronic ＆ Communication Engineering,SUN YAT-SEN University

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College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications

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