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Download fileBroadband MIMO beamforming for frequency selective channels using the sequential best rotation algorithm
conference contribution
posted on 2009-11-30, 13:46 authored by Martin Davies, Sangarapillai LambotharanSangarapillai Lambotharan, Jonathon Chambers, John McWhirterFor 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.
History
School
- Mechanical, Electrical and Manufacturing Engineering
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.Publisher
© IEEEVersion
- VoR (Version of Record)
Publication date
2008Notes
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.ISBN
9781424416448ISSN
1550-2252Language
- en