Signal Processing - Image and Video Coding beyond Standards
Generalized principal component beamformer for communication systems
Signal Processing - Content-based image and video retrieval
Performance analysis of non-data aided SBIB receivers for CDMA systems
Signal Processing
Blind IB-MSNR Beamforming for DSSS-based Communication Systems
Wireless Personal Communications: An International Journal
A blind two-stage receiver for MIMO-CDMA systems
ISRN Communications and Networking
International Journal of Communication Systems
A Blind LCMV-Based CFO Estimation for MC-CDMA Systems Over Multipath Fading Channels
Wireless Personal Communications: An International Journal
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The generalized eigenspace-based beamformer (GEIB) is presented here, which utilizes the eigenstructure of the correlation matrix to enhance the performance of the linearly constrained minimum variance beamformer (LCMVB). The weight vector of the GEIB is found by projecting the LCMVB weight vector onto a vector subspace constructed from the eigenstructure of the correlation matrix. The GEIB and the LCMVB have the same responses to the desired signal and the interferers. However, the weight vector of the GEIB has a smaller norm and generates a lower output noise power. An additional advantage of the GEIB is that the linear constraints can be treated flexibly, i.e. each linear constraint can be chosen to be preserved or not preserved. The cost of preserving a linear constraint is to get more output noise power. In addition to developing the GEIB, we discuss the effects of imposing linear constraints on the output noise powers of the GEIB and the LCMVB. Computer simulations are also presented that demonstrate the merits of the GEIB