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A platform for research: civil engineering, architecture and urbanism
Performance of Variable Step-Size LMS Algorithm for Beamforming of Smart Antenna of Dipole Array
Abstract This paper describes a performance comparison of least mean square (LMS) and variable least mean square (VSLMS) technique for beam formation for smart antenna of dipole array. In 4G and 5G cellular communication, ‘smart antenna is one of the important technologies’. Due to increased traffic densities, accurate beam formation and interference reduction in a cellular area became one of the tasks of the cell site antenna system. After determining direction of arrival (DOA) of user’s signal smart antenna forms beam toward the user and null toward the interferer using some effective digital signal processing algorithm. In this paper, investigation on the performance of VSLMS algorithm for adaptive beamforming of smart antenna of dipole array is presented. It is found that for interference reduction lower side lobe level (SLL) can be obtained using VSLMS algorithm compared to LMS algorithm. Maximum 3 dB lower SLL is achieved using VSLMS compared to LMS algorithm. The investigation, presented here, is useful for cellular network.
Performance of Variable Step-Size LMS Algorithm for Beamforming of Smart Antenna of Dipole Array
Abstract This paper describes a performance comparison of least mean square (LMS) and variable least mean square (VSLMS) technique for beam formation for smart antenna of dipole array. In 4G and 5G cellular communication, ‘smart antenna is one of the important technologies’. Due to increased traffic densities, accurate beam formation and interference reduction in a cellular area became one of the tasks of the cell site antenna system. After determining direction of arrival (DOA) of user’s signal smart antenna forms beam toward the user and null toward the interferer using some effective digital signal processing algorithm. In this paper, investigation on the performance of VSLMS algorithm for adaptive beamforming of smart antenna of dipole array is presented. It is found that for interference reduction lower side lobe level (SLL) can be obtained using VSLMS algorithm compared to LMS algorithm. Maximum 3 dB lower SLL is achieved using VSLMS compared to LMS algorithm. The investigation, presented here, is useful for cellular network.
Performance of Variable Step-Size LMS Algorithm for Beamforming of Smart Antenna of Dipole Array
Samantaray, Barsa (author) / Das, Kunal Kumar (author) / Roy, Jibendu Sekhar (author)
2019-06-28
8 pages
Article/Chapter (Book)
Electronic Resource
English
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