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Adaptive Channel Estimation in DS-CDMA Downlink Systems

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Authors
Choi, Ji-Woong; Lee, Yong-Hwan
Issue Date
2002-09
Citation
The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2002
Keywords
channel estimationDS-CDMApilot channel
Abstract
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.
Language
English
URI
http://www.lx.it.pt/pimrc2002/

https://hdl.handle.net/10371/7155
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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