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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
MORE INFORMATION
KEYWORDS
Genetic algorithm, Smart antenna, Null steering, Sidelobe cancellation
ABSTRACT
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
| 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. |
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Mr. Reza Abdolee
- Malaysia
reza.ab@ieee.org
Mr. Mohd Tarmizi Ali
- Malaysia
Mr. Tharek Abd Rahman
- Malaysia
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