Nonlinear beamforming for multiple-antenna assisted QPSK wireless systems
Nonlinear beamforming for multiple-antenna assisted QPSK wireless systems
A nonlinear beamforming aided detector is proposed for multiple-antenna assisted quadrature phase shift keying systems. By exploiting the inherent symmetry of the optimal Bayesian detection solution, a symmetric radial basis function (SRBF) detector is developed which is capable of approaching the
optimal Bayesian performance using channel-impaired training data. In the uplink case, adaptive nonlinear beamforming can be implemented effectively by estimating the channel matrix based on the least squares channel estimate. Adaptive implementation of nonlinear beamforming in the downlink case by contrast is much more challenging, and we adopt a cluster-variation enhanced
clustering algorithm to directly identify the SRBF centre vectors required for realising the optimal Bayesian detector.
4230-4234
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Tan, Shuang
e7f739b4-0aa4-494f-ac0d-cd000d10c576
19 May 2008
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Tan, Shuang
e7f739b4-0aa4-494f-ac0d-cd000d10c576
Chen, Sheng, Hanzo, Lajos and Tan, Shuang
(2008)
Nonlinear beamforming for multiple-antenna assisted QPSK wireless systems.
In IEEE International Conference on Communications.
.
(doi:10.1109/ICC.2008.794).
Record type:
Conference or Workshop Item
(Paper)
Abstract
A nonlinear beamforming aided detector is proposed for multiple-antenna assisted quadrature phase shift keying systems. By exploiting the inherent symmetry of the optimal Bayesian detection solution, a symmetric radial basis function (SRBF) detector is developed which is capable of approaching the
optimal Bayesian performance using channel-impaired training data. In the uplink case, adaptive nonlinear beamforming can be implemented effectively by estimating the channel matrix based on the least squares channel estimate. Adaptive implementation of nonlinear beamforming in the downlink case by contrast is much more challenging, and we adopt a cluster-variation enhanced
clustering algorithm to directly identify the SRBF centre vectors required for realising the optimal Bayesian detector.
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Published date: 19 May 2008
Additional Information:
Event Dates: 19-23 May 2008
Venue - Dates:
2008 IEEE International Conference on Communications, , Beijing, China, 2008-05-19 - 2008-05-23
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 265792
URI: http://eprints.soton.ac.uk/id/eprint/265792
PURE UUID: ab494eee-023a-4662-8b6f-64c00ab83d84
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Date deposited: 27 May 2008 12:20
Last modified: 18 Mar 2024 02:34
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Contributors
Author:
Sheng Chen
Author:
Lajos Hanzo
Author:
Shuang Tan
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