【摘要】 文章主要讨论了宽带码分多址(WCDMA)网络中无线小区随机接入信道(RACH)的数学建模方法及性能分析。首先介绍了WCDMA的RACH及信息发送方式,然后描述了RACH随机接入过程的时隙ALOHA接入方式,并在此基础上重点分析了RACH数学建模的方法和详细过程,给出了RACH吞吐量的计算公式,最后,对RACH的性能进行了分析。更多还原

【Abstract】 In this paper,we mainly discuss the mathematical modeling and performances of the Random Access Channel(RACH) of the wireless cells in WCDMA networks.We first introduce RACH and the message transfer of WCDMA net-works.Then we describe the slotted ALOHA access procedure of the RACH access process and,on this basis,we lay special stress on analyzing the method and detailed procedure of RACH mathematical modeling and give the calculation formula for its throughput.Finally,we make analysis of its performances.更多还原