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Finger assignment schemes for RAKE receivers with multiple-way soft handover

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4 Author(s)
Seyeong Choi ; Texas A&M Univ. at Qatar, Doha ; Alouini, M.-S. ; Qaraqe, K.A. ; Hong-Chuan Yang

We propose and analyze new finger assignment techniques that are applicable for RAKE receivers in the soft handover (SHO) region. Specifically, extending the results for the case of two-base station (BS), we consider the multi-BS situation, attack the statistics of several correlated generalized selection combining (GSC) stages, and provide closed-form expressions for the statistics of the output signal-to-noise ratio (SNR). By investigating the tradeoff among the error performance, the average number of required path estimations/comparisons, and the SHO overhead, we show through numerical examples that the new schemes offer commensurate performance in comparison with more complicated GSC-based diversity systems while requiring a smaller estimation load and SHO overhead.

Published in:

Wireless Communications, IEEE Transactions on  (Volume:7 ,  Issue: 2 )

Date of Publication:

February 2008

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