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Capacity Evaluation of a Forward Link DS-CDMA Cellular System with Fast TPC Based on SIR

机译:基于SIR的带快速TPC的前向链路DS-CDMA蜂窝系统容量评估

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摘要

The outage probability of a forward link DS- CDMA cellular system with fast transmit power control (TPC) based on signal-to-interference ratio (SIR) is investigated. The expression for SIR at the output of RAKE receiver is developed, and the outage probability is evaluated by using Monte Carlo sim- ulation. We consider two kinds of channel models: random delay resolvable path model and tapped delay line model which are suit- able models for a few distinct paths channel and highly frequency- selective-channel model, respectively. The outage probability of a system with fast TPC based on SIR is compared to that without fast TPC. The use of orthogonal spreading codes is compared to that of the random spreading codes in terms of outage probabil- ity. The effects of the maximum and minimum transmit powers and the dispersive loss of signal power on the outage probability are also investigated.
机译:研究了基于信干比(SIR)的具有快速发射功率控制(TPC)的前向链路DS-CDMA蜂窝系统的中断概率。开发了RAKE接收机输出端的SIR表达式,并通过蒙特卡罗仿真评估了中断概率。我们考虑两种信道模型:随机延迟可分辨路径模型和抽头延迟线模型,它们分别适用于一些不同路径的信道模型和高频选择信道模型。将具有基于SIR的快速TPC的系统与没有快速TPC的系统的中断概率进行比较。就中断概率而言,将正交扩展码的使用与随机扩展码的使用进行了比较。还研究了最大和最小发射功率以及信号功率的色散损耗对中断概率的影响。

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