北京邮电大学学报

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北京邮电大学学报

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基于多用户检测技术的时分双工-码分多址系统上行链路容量研究 

    

  1. 北京邮电大学 电信工程学院 , 北京 100876
  • 基金资助:
     

On the Capacity of Time Division Duplex-Code Division Multiple Access Uplink System with Multi-User Detection 

    

  1. Telecommunication Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Supported by:
     

摘要: 从理论上分析了多用户检测因子对时分双工-码分多址系统容量和负载的影响 ,给出了改进后的背景噪声增加因子与上行链路容量和负载的理论计算公式. 公式表明 ,影响时分双工-码分多址系统上行容量和负载的因素还包括多用户检测因子和参数 j(小区外和小区内干扰之比 ). 仿真结果表明,用背景噪声增加因子估计时分双工-码分多址系统上行链路容量和负载完全正确可行. 

关键词: 码分多址, 时分双工 , 上行链路容量, 背景噪声增加因子, 上行链路负载

Abstract:  A novel approach to determine the uplink capacity and load of time division duplex-code division multiple access system by using background noise rise is presented. According to the approach, the influence of multi-user detection factor can be determined, and the uplink capacity and load can be calculated by some close form expressions as frequency division duplex-code division multiple access scheme. By comparing our analytical results with static simulation results, we show that our analytical approach and the deduced expressions are very good math with simulations.

Key words: code division multiple access, time division duplex, uplink system capacity, background noise rise, uplink load

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