Adaptation of lcmv-based beamforming by vector space projection

Over the last few years the demand for wireless communication services has been risen beyond expectations. The operation of wireless communication is subject to limited available spectrum, thus, how to improve frequency reuse efficiency is important. Spatial division multiple access (SDMA) scheme is another mean, besides that of TDMA, FDMA and CDMA, to expand channel capacity to meet the escalating demand of wireless communication services. To achieve the scheme of SDMA, one should introduce array systems to explore space resource, which stimulates the development of smart antenna systems (SAS) for new generation wireless communication systems [1-4].