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Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems

Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems
Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems
A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna array s elements, are ?rst utilised to provide a rough initial least squares estimate of the beamformer s weight vector. A concurrent constant modulus algorithm and soft decision-directed scheme is then applied to adapt the beamformer. This semi-blind adaptive beamforming scheme is capable of converging fast to the minimum mean-square-error beamforming solution, as demonstrated in our simulation study.
1476-8186
565-570
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Yao, Wang
d17db2fb-950a-4220-9c5c-d98d10279271
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Yao, Wang
d17db2fb-950a-4220-9c5c-d98d10279271
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Chen, Sheng, Yao, Wang and Hanzo, Lajos (2010) Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems. International Journal of Automation and Computing, 7 (4), 565-570.

Record type: Article

Abstract

A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna array s elements, are ?rst utilised to provide a rough initial least squares estimate of the beamformer s weight vector. A concurrent constant modulus algorithm and soft decision-directed scheme is then applied to adapt the beamformer. This semi-blind adaptive beamforming scheme is capable of converging fast to the minimum mean-square-error beamforming solution, as demonstrated in our simulation study.

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Published date: November 2010
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 271576
URI: https://eprints.soton.ac.uk/id/eprint/271576
ISSN: 1476-8186
PURE UUID: 071d24bc-b7ee-442a-88d0-76602d741d56
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 21 Sep 2010 11:50
Last modified: 18 Jul 2017 06:41

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Contributors

Author: Sheng Chen
Author: Wang Yao
Author: Lajos Hanzo ORCID iD

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