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Title: Broadband MIMO beamforming for frequency selective channels using the sequential best rotation algorithm
Authors: Davies, Martin
Lambotharan, Sangarapillai
Chambers, Jonathon
McWhirter, John
Issue Date: 2008
Publisher: © IEEE
Citation: DAVIES, M. ... et al, 2008. Broadband MIMO beamforming for frequency selective channels using the sequential best rotation algorithm. IN: Proceedings of the IEEE Vehicular Technology Conference, 2008. VTC Spring 2008, Singapore, 11-14 May, pp.1147-1151.
Abstract: For a narrowband multi-input multi-output (MIMO) system the singular value decomposition has the ability to provide multiple spatial channels for data transmission. We extend this work to obtain spatial diversity techniques for frequency selective MIMO systems using a polynomial matrix decomposition known as the sequential best rotation using second order statistics (SBR2) method. This algorithm diagonalizes a MIMO frequency selective channel yielding various spatial modes for data transmission. We evaluate the diversity performance of the dominant channel provided by the SBR2 based broadband decomposition and compare it with a transmit antenna selection method (TAS) and a MIMO orthogonal frequency-division multiplexing (OFDM) singular value decomposition (SVD) based approach. Simulation results show SBR2 significantly outperforms the average bit error rate (BER) of TAS, making it very suitable for time division multiple access (TDMA) and code division multiple access (CDMA) systems. SBR2 and MIMO-OFDM systems are shown to have identical BER performance, confirming the efficiency of the proposed low delay spatial-temporal scheme.
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.2008.243
URI: https://dspace.lboro.ac.uk/2134/5541
ISBN: 9781424416448
ISSN: 1550-2252
Appears in Collections:Conference Papers and Contributions (Electronic, Electrical and Systems Engineering)

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