Adaptive channel estimation in DS-CDMA downlink systems

被引：0

作者：

Choi, JW ^{[1
]}

Lee, YH ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn, Seoul 151744, South Korea

来源：

13TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOL 1-5, PROCEEDINGS: SAILING THE WAVES OF THE WIRELESS OCEANS | 2002年

关键词：

D O I：

10.1109/PIMRC.2002.1045265

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We design an adaptive channel estimator (ACE) in the DS-CDMA downlink that has a common pilot channel (CPICH). The proposed ACE first estimates the channel condition including the maximum Doppler frequency without requiring exact a priori information on the operating condition. Then, it adjusts the impulse response of the channel estimation filter in response to the estimated channel condition. The performance of the proposed ACE is verified by computer simulation. The performance improvement with the use of the proposed ACE increases as the channel experiences severe frequency selective fading or the mobile is getting closer to the cell boundary.

引用

页码：1432 / 1436

页数：5

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