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Adaptive Beamforming for mmWave 5G MIMO Antennas

Enahoro, Sunday, Ekpo, Sunday ORCID logoORCID: https://orcid.org/0000-0001-9219-3759, Uko, Mfonobong, Ansari,, Umm-E-Haya, Altaf, Arslan and Zafar, Muazzam (2021) Adaptive Beamforming for mmWave 5G MIMO Antennas. In: 2021 IEEE 21st Annual Wireless and Microwave Technology Conference, 28 April 2021 - 29 April 2021, Sand Key, Forida, USA.

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Abstract

The direction of arrival (DOA) estimation and beamforming are effective methods for spatial diversity realization. Various algorithm already exists for implementing these methods. This paper explore the performance of least mean square algorithm (LMS) beamforming algorithm. This adaptive beamforming algorithm investigates receiver signal processing method that continuously monitor, calculate and update the weights in a continuously changing electromagnetic environment. Several optimization algorithms are studied, and a comparison of the least mean-squared algorithm and the minimum variance distortionless response is investigated with varying parameters (i.e. number of antenna element, element spacing etc.) using analytical method and Matlab simulation. It would be demonstrated through simulation that LMS algorithm increases signal quality by elimination interfering signals and noise by nulling them, while sending maximum signal (beams) to the desired direction.

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