一种新的CDMA2000多载波解调方法

A Novel Demodulation Approach for Multi carrier of CDMA2000

CDMA2 0 0 0采用多载波和直接序列扩频两种方式来达到提供宽带数据业务的目的 .本文针对CD MA2 0 0 0前向信道的三载波调制方式 ,提出了一种新的多载波解调方法 .文章首先分析了三载波的调制结构 ,根据Rake接收机的原理 ,推导出相应CDMA2 0 0 0前向RAKE接收机模型并给出解调结构 .最后 ,用COSSAP软件对此模型进行了仿真 。

Multi-carrier and direct spread are utilized by CDMA2000 for supporting wideband data service.A novel demodulation approach is proposed for multi-carrier of CDMA2000.In this paper,the structure of multi-carrier is shown and the principle of REKE receiver is discussed.Then,the structure of bandpass RAKE receiver and the model of demodulation are depicted.We also present simulation results about the system performance.