M. Siva Ganga Prasad  , P. Siddaiah  , L. Pratap Reddy  , 
    Analysis of Fixed Weight Beamforming to Enhance the Desired Signal Using Smart Antenna in Wireless Communications,
    Journal of Mobile Communication,
    Volume 3,Issue 1,
    2009,
    Pages 12-16,
    ISSN 1990-794x,
    jmcomm.2009.12.16,
    (https://makhillpublications.co/view-article.php?doi=jmcomm.2009.12.16)
    Abstract: Smart antenna systems plays an important role in wireless communications systems. This study begins with a heuristic approach about the optimization of Signal-to-Interference Ratio (SIR) to enhance the received signal and minimize the interfering signals in wireless communications. After that, the approach for improvisation of SIR of a desired signal is extended for a specified condition and for its formulation requires noise to be added in the system in this study. In this study, a rigorous derivation of the Signal-to-Interference Ratio (SIR) maximization is derived by considering a general non adaptive conventional or traditional narrowband array and finally the limitations of non-adaptive or fixed beamforming approach to enhance the desired signal.
    Keywords: Beamforming;fixed weight vector;wireless communications;signal-to-interference ratio;smart antenna;array of elements