Array Processing and Adaptive PIC Technology for Uplink of WCDMA System

ZHANG Hua; GONG Yao-huan; LI Hui-yong

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Array Processing and Adaptive PIC Technology for Uplink of WCDMA System

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- Array Processing and Adaptive PIC Technology for Uplink of WCDMA System
- Acta Electronica Sinica Vol. 29, Issue 12, Pages: 1589-1592(2001)
- 作者机构：
  
  电子科技大学电子工程学院,四川,成都,610054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN914.42
- Published：2001
- 稿件说明：
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ZHANG Hua, GONG Yao-huan, LI Hui-yong. Array Processing and Adaptive PIC Technology for Uplink of WCDMA System[J]. Acta Electronica Sinica, 2001, 29(12): 1589-1592.
DOI：

ZHANG Hua, GONG Yao-huan, LI Hui-yong. Array Processing and Adaptive PIC Technology for Uplink of WCDMA System[J]. Acta Electronica Sinica, 2001, 29(12): 1589-1592. DOI：

摘要

本文提出了一种适于WCDMA系统上行链路阵列接收加PIC的联合处理方案.首先针对WCMA系统上行链路帧结构的特征

将Z.Rong等中提出的LS-DRMTA改进为导频位辅助LMS-DRMTA算法.这种新的阵列接收CDMA解调算法相对于LS-DRMTA算法大大降低了基站处理的运算量

提高了算法的实用性

仿真实验还表明该算法比原算法具有更低的误码率.然后在阵列处理之后加上PIC

可以进一步消除CCI

降低系统误码率.这种阵列接收加PIC方案具有运算量小

延时小

易于适时实现等特点.

Abstract

A combined scheme of smart antenna and PIC with low complexity is proposed for the uplink receiving of WCDMA system.At first we develop the LS-DRMTA algorithm proposed by Z.Rong into a new algorithm named pilot bit assisted LMS-DRMTA in accordance with the uplink frame structure of WCDMA system.The proposed algorithm cuts down lots of computation complexity of LS-DRMTA algorithm

which simplifies its application in WCDMA system.Further more

the simulation experiments indicate that the new algorithm can perform at much lower BER than LS-DRMTA.After the array processing of the received signal by the proposed algorithm

we go further to cancel the CCI by adaptive PIC which is a useful method for MUD.The overall scheme proposed is characterized by low computation complexity、little delay and easy real time implemetation.

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