Two-stage code reference beamformer in mobile communications
Document typeConference report
Rights accessOpen Access
This paper addresses a new architecture for blind adaptive beamforming when dealing with frequency hopping (FH) modulation in cellular mobile communications systems. The proposed code reference beamformer (CRB) takes advantage of the inherent frequency diversity to estimate beforehand the noise plus interference correlation matrix, which is employed as the first part of the framework. Then, a second stage is adaptively obtained without any a priori knowledge of either the direction of arrival or the array manifold. Using this information, the first stage is in turn readjusted and, as a result, the scheme is able to track non-stationary scenarios following the channel variations with no previous references
CitationMestre, F., Najar, M., Lagunas, M. Two-stage code reference beamformer in mobile communications. A: IEEE International Conference on Acoustics, Speech, and Signal Processing. "ICASSP 1998: proceedings of the 1998 IEEE International Conference on Acoustics, Speech, and Signal Processing: May, 12 - 15, 1998: Washington State Convention and Trade Center, Seattle, Washington, USA". Seattle, Washington: 1998, p. 3309-3312.