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Beamforming Design in SWIPT-Based Joint Multicast-Unicast mmWave Massive MIMO with Lens-Antenna Array

Hao, Wanming, Sun, Gangcan, Chu, Zheng, Xiao, Pei, Zhu, Zhengyu, Yang, Shouyi and Tafazolli, Rahim (2019) Beamforming Design in SWIPT-Based Joint Multicast-Unicast mmWave Massive MIMO with Lens-Antenna Array IEEE Wireless Communications Letters.

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In this letter, we study the beamforming design in a lens-antenna array-based joint multicast-unicast millimeter wave massive MIMO system, where the simultaneous wireless information and power transfer at users is considered. First, we develop a beam selection scheme based on the structure of the lens-antenna array and then, the zero forcing precoding is adopted to cancel the inter-unicast interference among users. Next, we formulate a sum rate maximization problem by jointly optimizing the unicast power, multicast beamforming and power splitting ratio. Meanwhile, the maximum transmit power constraint for the base station and the minimum harvested energy for each user are imposed. By employing the successive convex approximation technique, we transform the original optimization problem into a convex one, and propose an iterative algorithm to solve it. Finally, simulation results are conducted to verify the effectiveness of the proposed schemes.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Sun, Gangcan
Zhu, Zhengyu
Yang, Shouyi
Date : 2 April 2019
DOI : 10.1109/LWC.2019.2908829
Copyright Disclaimer : © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords : SWIPT; Lens-antenna array; Massive MIMO; mmMave; Multicast; Unicast; Array signal processing; Interference; Precoding; Unicast; Radio frequency; Optimization; MIMO communication
Depositing User : Clive Harris
Date Deposited : 26 Apr 2019 09:03
Last Modified : 26 Apr 2019 09:03

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