Abstract
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.
Original language | English |
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Article number | 4450816 |
Pages (from-to) | 495-499 |
Number of pages | 5 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 7 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2008 |
Externally published | Yes |
Keywords
- Diversity methods
- Fading channels
- Generalized selection combining (GSC)
- Performance analysis
- RAKE receiver