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Performance of Smart Antenna Under Different Fading Conditions

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Abstract

Optimizing the current distribution of an evenly spaced antenna array has shown to be an efficient approach for reducing side lobe levels. In this article, the Tchebyscheff distribution-based antenna array synthesis approach is combined with an adaptive signal processing algorithm for beamforming and side lobe level reduction in smart antennas in various fading situations. The performance of smart antennas in uniformly spaced linear, planar, circular, and semi-circular arrays are evaluated. The presence of Rayleigh and Rician channels is examined in the network. The least mean square (LMS) and normalised least mean square (NLMS) algorithms are applied as adaptive algorithms. In fading environments, the NLMS algorithm with Tchebyscheff distribution outperforms than the LMS algorithm with Tchebyscheff distribution, with a side lobe level decrease of 11.23 dB. The lowest side lobe achieved with the NLMS algorithm with Tchebyscheff distribution is − 45.59 dB for uniform planar array.

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Authors and Affiliations

  1. School of Electronics Engineering, Kalinga Institute of Industrial Technology, Bhubaneswar, India

    Anupama Senapati, B. Shivalal Patro & Sushanta Kumar Mohapatra

  2. School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand

    Kriangkrai Sooksood

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  1. Anupama Senapati
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  2. B. Shivalal Patro
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  3. Kriangkrai Sooksood
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  4. Sushanta Kumar Mohapatra
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Correspondence to Kriangkrai Sooksood.

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Senapati, A., Patro, B.S., Sooksood, K. et al. Performance of Smart Antenna Under Different Fading Conditions. Wireless Pers Commun 124, 1493–1509 (2022). https://doi.org/10.1007/s11277-021-09417-9

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