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Optimization of Multi-Branch Switched Diversity Systems

Title
Optimization of Multi-Branch Switched Diversity Systems
Author
남해운
Keywords
Diversity combining; switched diversity; adaptive threshold; switching threshold
Issue Date
2009-10
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON COMMUNICATIONS, v. 57, no. 10, page. 2960-2970
Abstract
A performance optimization based on the optimal switching threshold(s) for a multi-branch switched diversity system is discussed in this paper. For the conventional multi-branch switched diversity system with a single switching threshold, the optimal switching threshold is a function of both the average channel SNR and the number of diversity branches, where computing the optimal switching threshold is not a simple task when the number of diversity branches is high. The newly proposed multi-branch switched diversity system is based on a sequence of switching thresholds, instead of a single switching threshold, where a different diversity branch uses a different switching threshold for signal comparison. Thanks to the fact that each switching threshold in the sequence can be optimized only based on the number of the remaining diversity branches, the proposed system makes it easy to find these switching thresholds. Furthermore, some selected numerical and simulation results show that the proposed switched diversity system with the sequence of optimal switching thresholds outperforms the conventional system with the single optimal switching threshold.
URI
https://ieeexplore.ieee.org/document/5288498?arnumber=5288498&SID=EBSCO:edseeehttps://repository.hanyang.ac.kr/handle/20.500.11754/165973
ISSN
0090-6778
DOI
10.1109/TCOMM.2009.10.080177
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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