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Factor-Graph-Based Soft Self-Iterative Equalizer for Multipath Channels

Ben Lu; Guosen Yue; Xiaodong Wang; Mohammad Madihian

Title:
Factor-Graph-Based Soft Self-Iterative Equalizer for Multipath Channels
Author(s):
Lu, Ben
Yue, Guosen
Wang, Xiaodong
Madihian, Mohammad
Date:
Type:
Articles
Department(s):
Electrical Engineering
Volume:
2005
Persistent URL:
Book/Journal Title:
EURASIP Journal on Wireless Communications and Networking
Publisher:
Hindawi Publishing Corporation
Abstract:
We consider factor-graph-based soft self-iterative equalization in wireless multipath channels. Since factor graphs are able to characterize multipath channels to per-path level, the corresponding soft self-iterative equalizer possesses reduced computational complexity in sparse multipath channels. The performance of the considered self-iterative equalizer is analyzed in both single-antenna and multiple-antenna multipath channels. When factor graphs of multipath channels have no cycles or mild cycle conditions, the considered self-iterative equalizer can converge to optimum performance after a few iterations; but it may suffer local convergence in channels with severe cycle conditions.
Subject(s):
MIMO systems
Radio--Transmitters and transmission--Fading
Equalizers (Electronics)
Electrical engineering
Communication of technical information
Item views
72
Metadata:
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Suggested Citation:
Ben Lu, Guosen Yue, Xiaodong Wang, Mohammad Madihian, , Factor-Graph-Based Soft Self-Iterative Equalizer for Multipath Channels, Columbia University Academic Commons, .

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