Chip-level channel equalization in WCDMA downlink

被引：48
|
作者：
Hooli, K
Juntti, M
Heikkilä, MJ
Komulainen, P
Latva-aho, M
Lilleberg, J
机构：
[1] Univ Oulu, Ctr Wireless Commun, FIN-90014 Oulu, Finland
[2] Nokia Mobile Phones, Oulu 90571, Finland
来源：
EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING | 2002年 / 2002卷 / 08期
关键词：
WCDMA; multiple-access interference; channel equalization;
D O I：
10.1155/S1110865702000914
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The most important third generation (3G) cellular communications standard is based on wideband CDMA (WCDMA). Receivers based on TDMA style channel equalization at the chip level have been proposed for a WCDMA downlink employing long spreading sequences to ensure adequate performance even with a high number of active users. These receivers equalize the channel prior to despreading, thus restoring the orthogonality of users and resulting in multiple-access interference (MAI) suppression. In this paper, an overview of chip-level channel equalizers is delivered with special attention to adaptation methods suitable for the WCDMA downlink. Numerical examples on the equalizers' performance are given in Rayleigh fading frequency-selective channels.
引用
收藏
页码：757 / 770
页数：14
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