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A novel channel-identification method for wireless communication systems

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3 Author(s)
Honghui Xu ; Dept. of Electr. & Comput. Eng., Univ. of Iowa, Iowa City, IA, USA ; Dasgupta, S. ; Zhi Ding

We present a novel dual-channel identification approach for mobile wireless communication systems. Unlike traditional channel-estimation methods that rely on training symbols, we propose a bent-pipe feedback mechanism which requires 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 introduce an effective algorithm that can identify 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.

Published in:

Communications, IEEE Transactions on  (Volume:52 ,  Issue: 10 )

Date of Publication:

Oct. 2004

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