Identification of Sparsely Distributed Multipath Channels for Wideband Mobile Radio Systems

Wonjin SUNG  

IEICE TRANSACTIONS on Communications   Vol.E85-B   No.9   pp.1842-1845
Publication Date: 2002/09/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technology
tap selection,  multipath fading channel,  sparse channel,  likelihood ratio test,  

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Terrestrial radio links with sparsely distributed multipath delays can be represented by a tapped-delay line with a few significant tap coefficients. This letter presents criteria and performance of identification methods that determine channel taps with significant power. In particular, a tap identification method derived from the maximum-likelihood criterion and its closed form error probabilities are presented. Performance improvement over a previously reported scheme is quantified using the derived error probabilities.