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Title: A polynomial QR decomposition based turbo equalization technique for frequency selective MIMO channels.
Authors: Davies, Martin
Lambotharan, Sangarapillai
Foster, Joanne
Chambers, Jonathon
Issue Date: 2009
Publisher: © IEEE
Citation: DAVIES, M. ... et al. A polynomial QR decomposition based turbo equalization technique for frequency selective MIMO channels. IN: Proceedings of 2009 69th Vehicular Technology Conference (VTC 2009), Barcelona, Spain, 26-29 April, pp. 1-5.
Abstract: In the case of a frequency flat multiple-input multiple-output (MIMO) system, QR decomposition can be applied to reduce the MIMO channel equalization problem to a set of decision feedback based single channel equalization problems. Using a novel technique for polynomial matrix QR decomposition (PMQRD) based on Givens rotations, we extend this work to frequency selective MIMO systems. A transmitter design based on Diagonal Bell Laboratories Layered Space Time (D-BLAST) encoding has been implemented. Turbo equalization is utilized at the receiver to overcome the multipath delay spread and to facilitate multi-stream data feedback. The effect of channel estimation error on system performance has also been considered to demonstrate the robustness of the proposed PMQRD scheme. 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 TDMA systems with frequency selective channels.
Description: This is a conference paper [© IEEE]. It is also available at: 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/VETECS.2009.5073330
URI: https://dspace.lboro.ac.uk/2134/5554
Appears in Collections:Conference Papers and Contributions (Electronic, Electrical and Systems Engineering)

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