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Identification of Sparsely Distributed Multipath Channels for Wideband Mobile Radio Systems
IEICE TRANSACTIONS on Communications
Publication Date: 2002/09/01
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.