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