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Title: Polynomial matrix QR decomposition and iterative decoding of frequency selective MIMO channels
Authors: Davies, Martin
Lambotharan, Sangarapillai
Foster, Joanne
Chambers, Jonathon
McWhirter, John
Issue Date: 2009
Publisher: © IEEE
Citation: DAVIES, M. ... et al, 2009. Polynomial matrix QR decomposition and iterative decoding of frequency selective MIMO channels. IN: Proceedings of Wireless Communications and Networking Conference, 2009. WCNC 2009, Budapest, 5-8 April 2009, pp. 1-6
Abstract: For a frequency flat multi-input multi-output (MIMO) system the QR decomposition can be applied to reduce the MIMO channel equalization problem to a set of decision feedback based single channel problems. Using a novel technique for polynomial matrix QR decomposition (PMQRD) based on Givens rotations, we show the PMQRD can do likewise for a frequency selective MIMO system. Two types of transmitter design, based on Horizontal and Vertical Bell Laboratories Layered Space Time (H-BLAST, V-BLAST) encoding have been implemented. Receiver processing utilizes Turbo equalization to exploit multipath delay spread and to facilitate multi-stream data feedback. Average bit error rate simulations show a considerable improvement over a benchmark orthogonal frequency division multiplexing (OFDM) technique. The proposed scheme thereby has potential applicability in MIMO communication applications, particularly for a TDMA system with frequency selective channels.
Description: This is a conference paper [© IEEE]. It is also available from: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Version: Published
DOI: 10.1109/WCNC.2009.4917911
URI: https://dspace.lboro.ac.uk/2134/5536
ISBN: 9781424429479
ISSN: 1525-3511
Appears in Collections:Conference Papers and Contributions (Electronic, Electrical and Systems Engineering)

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