Title: Phase equalised Wiener filter-based hybrid precoding for massive MIMO systems

Authors: Khushal Thakur; Bhasker Gupta; Balwinder Singh Sohi

Addresses: Department of Electronics and Communication Engineering, Chandigarh University, 140413, Mohali, India; Department of Electronics and Communication Engineering, Chandigarh College of Engineering and Technology, 160019, Chandigarh, India; Department of Electronics and Communication Engineering, Chandigarh University, 140413, Mohali, India ' Department of Electronics and Communication Engineering, Chandigarh University, 140413, Mohali, India; Department of Electronics and Communication Engineering, Chandigarh College of Engineering and Technology, 160019, Chandigarh, India; Department of Electronics and Communication Engineering, Chandigarh University, 140413, Mohali, India ' Department of Electronics and Communication Engineering, Chandigarh University, 140413, Mohali, India; Department of Electronics and Communication Engineering, Chandigarh College of Engineering and Technology, 160019, Chandigarh, India; Department of Electronics and Communication Engineering, Chandigarh University, 140413, Mohali, India

Abstract: The MIMO systems proved to be very beneficial in improving efficiency and QoS of wireless systems. However, for complex multimedia applications, massive MIMO is required because of the very small wavelength associated with it. Thus, massive MIMO turns to be a promising technology for 5G applications. However, to achieve higher QoS with a high count of antennas at the base station is complex and computationally expensive for a complete baseband precoder. As a result, hybrid precoders that share the load between the digital (baseband) and analogue (RF) parts are proposed. In this paper, a phase equalised Wiener filter-based precoder is analysed. Simulation results depict that the proposed precoder outperforms the existing low complexity hybrid precoders.

Keywords: massive MIMO; hybrid precoding; Wiener filter; phase equalisation; mmWave.

DOI: 10.1504/IJUWBCS.2020.110549

International Journal of Ultra Wideband Communications and Systems, 2020 Vol.4 No.2, pp.104 - 109

Received: 26 Jan 2019
Accepted: 29 Apr 2020
Published online: 23 Oct 2020 *

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