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Analysis of Channel Estimation Algorithms in a RAKE Receiver with MRC  

전준수 (전남대학교 정보통신연구소)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.8, no.5, 2004 , pp. 970-976 More about this Journal
Abstract
In this paper, we analyze channel estimation algorithms in a RAKE receiver with MRC. There are 3 popular channel estimation algorithms, which are WMSA(Weighted Multi-Slot Averaging) algorithm, EGE(Equal Gain Estimation) algorithm, SSE(Symbol-to-Symbol Estimation) algorithm. We analyze asynchronous IMT-2000(3GPP) which employ 3 different channel estimation algorithms by HP-ADS(Advanced Design System) simulation tool. We used lakes fading channel model for the analysis. from simulation results, we could observe that the performance of WMSA algorithm is better than others in low Doppler effect(3Km/h). However, in the case of high Doppler effect(120km1h), the EGE algorithm is more efficient. In this case the simple estimator with EGE algorithm seems to be more useful.
Keywords
Channel estimation; MRC; RAKE; 3GPP; Jakes model;
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