AN IMPROVED MULTIRATE FEEDBACK SCHEME FOR WIRELESS CHANNEL IDENTIFICATION

Honghui Xu; Soura Dasgupta

doi:10.3182/20060329-3-AU-2901.00080

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AN IMPROVED MULTIRATE FEEDBACK SCHEME FOR WIRELESS CHANNEL IDENTIFICATION

Honghui Xu and Soura Dasgupta

IFAC Proceedings Volumes, Vol.39(1), pp.523-528

2006

DOI: 10.3182/20060329-3-AU-2901.00080

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Abstract

In an earlier paper we had presented a novel dual channel identification approach for mobile wireless communication systems. Unlike traditional channel estimation methods that rely on training symbols, this approach used a bent-pipe feedback mechanism requiring the mobile station (MS) to send portions of its received signal back to the Base Station (BS) for wireless channel identification. Using a filter-bank decomposition concept, we introduced an effective algorithm for identifying both the forward and the reverse channels based only on this feedback information. This new method permits transfer of computational burden from the MS to the resource rich BS and leads to significant savings in bandwidth consuming training signals. This paper proposes a more informative feedback method leading to significant performance improvement over our earlier scheme.

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Identification

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Details

Title: Subtitle: AN IMPROVED MULTIRATE FEEDBACK SCHEME FOR WIRELESS CHANNEL IDENTIFICATION
Creators: Honghui Xu - University of Iowa
Soura Dasgupta - University of Iowa
Resource Type: Journal article
Publication Details: IFAC Proceedings Volumes, Vol.39(1), pp.523-528
DOI: 10.3182/20060329-3-AU-2901.00080
ISSN: 1474-6670
Language: English
Date published: 2006
Academic Unit: Electrical and Computer Engineering
Record Identifier: 9984198003502771

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