Design of Smart Antenna Arrays for WiMAX Application Using LMS Algorithm Under Fading Channels

2020 ◽  
pp. 127-136
Author(s):  
Anupama Senapati ◽  
Pratyushna Singh ◽  
Jibendu Sekhar Roy
Keyword(s):  
Fading Channels ◽  
Antenna Arrays ◽  
Smart Antenna ◽  
Lms Algorithm

Robust Algorithms for DOA Estimation and Adaptive Beamforming in Wireless Mobile Communications

2009 ◽  
pp. 558-564
Author(s):  
R.M. Shubair ◽  
K.O. AlMidfa ◽  
A. Al-Marri ◽  
M. Al-Nuaimi
Keyword(s):  
Mobile Communications ◽  
Antenna Arrays ◽  
Communication Systems ◽  
Smart Antenna ◽  
Doa Estimation ◽  
Adaptive Beamforming ◽  
Lms Algorithm ◽  
Robust Algorithms ◽  
Wireless Mobile Communications ◽  
Wireless Mobile

This paper presents a tool for the modelling, analysis and simulation of direction-of-arrival (DOA) estimation and adaptive beamforming needed in the design of smart antenna arrays for wireless mobile communications. The developed tool implements the Minimum Variance Distortionless Response (MVDR) algorithm for DOA estimation and the Least Mean Squares (LMS) algorithm for adaptive beamforming. Performance of each algorithm is investigated with respect to the variation of a number of parameters that related to the signal environment and sensor array. Results of numerical simulation are useful for the design of smart antennas systems with optimal performance. Hence, the developed simulation tool can be used to improve and accelerate the design of wireless networks. It can also be used for computeraided learning of modern communication systems utilizing smart antenna arrays.

Robust Algorithms for DOA Estimation and Adaptive Beamforming in Wireless Mobile Communications

2011 ◽  
pp. 1036-1047
Author(s):  
R. M. Shubair ◽  
K. O. AlMidfa ◽  
A. Al-Marri ◽  
M. Al-Nuaimi
Keyword(s):  
Mobile Communications ◽  
Antenna Arrays ◽  
Communication Systems ◽  
Smart Antenna ◽  
Doa Estimation ◽  
Adaptive Beamforming ◽  
Lms Algorithm ◽  
Robust Algorithms ◽  
Wireless Mobile Communications ◽  
Wireless Mobile

This paper presents a tool for the modelling, analysis and simulation of direction-of-arrival (DOA) estimation and adaptive beamforming needed in the design of smart antenna arrays for wireless mobile communications. The developed tool implements the Minimum Variance Distortionless Response (MVDR) algorithm for DOA estimation and the Least Mean Squares (LMS) algorithm for adaptive beamforming. Performance of each algorithm is investigated with respect to the variation of a number of parameters that related to the signal environment and sensor array. Results of numerical simulation are useful for the design of smart antennas systems with optimal performance. Hence, the developed simulation tool can be used to improve and accelerate the design of wireless networks. It can also be used for computer-aided learning of modern communication systems utilizing smart antenna arrays.

scholarly journals The features of the use of the waveguide radiators in smart antenna systems

2018 ◽  
Vol 26 (1) ◽  
pp. 89-92
Author(s):  
V. M. Morozov ◽  
V. I. Magro
Keyword(s):  
Integral Equation ◽  
Antenna Array ◽  
Antenna Arrays ◽  
Smart Antenna ◽  
Integral Equation Method ◽  
Thin Plates ◽  
Coupling Region ◽  
Five Elements ◽  
Antenna Systems ◽  
Selection Of

The features of the use of finite waveguide antenna arrays in the structure of modern smart antenna systems are considered. The paper deals with the problem of diffraction of an electromagnetic wave on a finite waveguide antenna array scanning in the E-plane. Antenna array consists of five radiating elements. The open ends of the waveguides are surrounded by a metal screen. The resonator coupling region was chosen as matching elements. The solution of the problem is carried out by the integral equation method on the basis of the selection of overlapping regions. The problem reduces to solving the Fredholm integral equation of the second kind. An array of infinitely thin plates and that of waveguides with a finite wall thickness are considered. The main regularities for choosing the optimal geometric dimensions of the antenna array are established. Studies were carried out for arrays with a number of elements from five to fifteen. The analysis of edge effects in the final antenna array is carried out. It is shown that the introduction of a resonator region into a five-element lattice makes it possible to expand the sector of the radiation angles and avoid the effect of blinding. It is shown that this statement is valid not only for five-element lattices, but also for arrays with a large number of radiating elements. The radiation patterns are calculated. The  coefficients of mutual coupling in an array with five elements are investigated. General recommendations for choosing optimal sizes of the resonator coupling region of radiators are considered.

scholarly journals SYNTHESIS OF ADAPTIVE ANTENNA ARRAYS WITH VARIABLE ELEMENT SPACING USING LMS ALGORITHM.

2016 ◽  
Vol 4 (6) ◽  
pp. 1344-1348
Author(s):  
Somnath Patra ◽  
◽  
Biswajit Mahanty ◽  
Subhrajit Paul ◽  
Sumit Ghosh ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Lms Algorithm ◽  
Adaptive Antenna ◽  
Adaptive Antenna Arrays ◽  
Variable Element
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