Title :
Performance analysis of Bessel beamformer with LMS algorithm for smart antenna array
Author :
Yasin, M. ; Akhtar, Pervez
Author_Institution :
Dept. of Electron. & Power Eng., Nat. Univ. of Sci. & Technol., Islamabad, Pakistan
Abstract :
The objective of this paper is to analyze the mathematical model of Bessel beamformer with least mean square (LMS) beamforming algorithm using offset quadrature phase shift keying (OQPSK) which is one of the efficient digital modulation techniques. The desired user is placed at an angle 20 degree and all other users as interfering signals in a Rayleigh fading scenario. The performance is judged in terms of signal recovery, directive gain, minimum mean square error (MMSE), saving in transmitted power and rate of convergence. The analysis demonstrates that minimization of MSE can be an important technique for the optimization of a weight vector to enhance gain and capacity.
Keywords :
Bessel functions; Rayleigh channels; adaptive antenna arrays; array signal processing; least mean squares methods; modulation; quadrature phase shift keying; vectors; Bessel beamformer; LMS algorithm; MMSE; OQPSK; Rayleigh fading scenario; beamforming algorithm; digital modulation; least mean square; mathematical model; minimum mean square error; offset quadrature phase shift keying; performance analysis; smart antenna array; weight vector; Algorithm design and analysis; Array signal processing; Arrays; Convergence; Least squares approximation; Signal processing algorithms; Vectors; Bessel beamformer; LMS algorithm; smart/adaptive antenna array system;
Conference_Titel :
Open Source Systems and Technologies (ICOSST), 2012 International Conference on
Conference_Location :
Lahore
Print_ISBN :
978-1-4673-3094-7
DOI :
10.1109/ICOSST.2012.6472832
