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Implementation Of Blind Adaptive Beamforming Algorithms

Author(s):

Kirtan.R.Patel , Shantilal Shah Engg. College,Bhavnagar, Gujarat, India; Manish.P.Patel , Shantilal Shah Engg. College,Bhavnagar, Gujarat, India; Anil C. Suthar, Samarth College Of Engineering & Technology

Keywords:

Adaptive beam forming, Smart antenna, minimum variance distortion response.

Abstract

Beam forming is an array signal processing which increases signal to interference-noise ratio (SINR) by mitigating co-channel interferences present in wireless mobile cellular system. In this paper presents importance of beam forming technique for next generation broadband wireless mobile systems. Beam forming is a powerful means of increasing capacity, data rates and coverage of the cellular system. In beam forming technique, Delay of sum, Minimum variance distortion less response (MVDR) and Generalized Side lobe Canceller are presented. In this paper LMS algorithm can be applied to MVDR application. This is called LMS-MVDR has the capability of interference nulling. The amplitude response of LMS-MVDR will suppress the interfered signal and have the target amplitude held at 0db.Moreover, the amplitude response can be improved by increasing the number of Iterations(snapshot),Increasing the interference to target signal ratio, The spatial power spectrum MVDR shows the power incoming signals but it tries to maximize the interference signal instead of suppressing .The drawback is the target signal can be overpowered by the interference in the MVDR power spectrum.

Other Details

Paper ID: IJSRDV2I1202
Published in: Volume : 2, Issue : 1
Publication Date: 01/04/2014
Page(s): 188-190

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