GDL

Journal from gdlhub / 2021-01-20 15:25:15
By : Asma Issa Mohsin, Asaad S. Daghal, Adheed Hasan Sallomi, Telkomnika
Created : 2021-01-19, with 1 files

Keyword : beamforming, genetic algorithm, grey wolf optimization, least mean square, smart antenna
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/16970
Document Source : Web

Multipath environment is a limitation fact in optimized usage of wireless networks. Using smart antenna and beamforming algorithms contributed to that subscribers get a higher-gain signal and better directivity as well as reduce the consumed power for users and the mobile base stations by adjusting the appropriate weights for each element in the antenna array that leads to reducing interference anddirecting the main beam to wanted user. In this paper, the performance of three of beamforming algorithms in multipath environment in terms of directivity and side lobe level reduction has been studied and compared, which are least mean square (LMS), genetic algorithm (GA) and grey wolf optimization (GWO) technique. The simulation result appears that LMS algorithm aids us to get the best directivity followed by the GWO, and we may get most sidelobe level reduction by using the GA algorithm, followed by LMS algorithm in second rank.

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