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Decimal Genetics Algorithms for Null Steering and Sidelobe Cancellation in Switch Beam Smart Antenna System.
Reza Abdolee, Mohd Tarmizi Ali, Tharek Abd Rahman
Pages - 19 - 26     |    Revised - 15-08-2007     |    Published - 30-08-2007
Volume - 1   Issue - 3    |    Publication Date - October 2007  Table of Contents
Genetic algorithm, Smart antenna, Null steering, Sidelobe cancellation
Sidelobes cancellation is challenging task in beamforming and beam steering in smart antenna systems. The high level of sidelobes can significantly degrade the system performance as well as antenna power efficiency. In this paper, we present the new decimal genetic algorithm to reduce the sidelobe and at the same time create the nulls toward interferers and jammers. This technique takes advantage of Chebyshev coefficients window as an initial weight vector to speed up the optimization process. The simulation results have shown that this technique is able to find the most suitable weights vector to reduce the sidelobe power and at the same time create the nulls toward interferers. Verification has been done for Uniform Linear Array (ULA) structure. However, this technique can be used for non regular geometrical antenna array structure with variety of beam pattern requirements
CITED BY (6)  
1 Elkamchouchi, H. M., & Hassan, M. (2014). Array pattern synthesis approach using a genetic algorithm. Microwaves, Antennas & Propagation, IET, 8(14), 1236-1240.
2 Banerjee, S., & DWIVEDI, V. V. (2013). Review of Adaptive Linear Antenna Array Pattern Optimization. International Journal of Electronics.
3 Goswami, B., & Mandal, D. (2013). A genetic algorithm for the level control of nulls and side lobes in linear antenna arrays. Journal of King Saud University-Computer and Information Sciences, 25(2), 117-126.
4 Valliappan, N., Lozano, A., & Heath, R. W. (2013). Antenna subset modulation for secure millimeter-wave wireless communication. Communications, IEEE Transactions on, 61(8), 3231-3245.
5 Basha, T. G., Prasad, M. G., & Sridevi, P. V. (2012). Beam forming in smart antenna with improved gain and suppressed interference using genetic algorithm. Central European Journal of Computer Science, 2(1), 33-46.
6 R. Abdolee, T. A. Rahman and V. Vakilan, “Elements Space and Amplitude Perturbation Using Genetic Algorithm for Antenna Array Sidelobe Cancellation”, Signal Processing: An International Journal (SPIJ), 2(2), pp. 10 – 16, 2008.
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Mr. Reza Abdolee
- Malaysia
Mr. Mohd Tarmizi Ali
- Malaysia
Mr. Tharek Abd Rahman
- Malaysia