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

Wanming Hao, Gangcan Sun, Zheng Chu, Pei Xiao, Zhengyu Zhu, Shouyi Yang, Rahim Tafazolli

Research output: Journal PublicationArticlepeer-review

20 Citations (Scopus)


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.

Original languageEnglish
Article number8680660
Pages (from-to)1124-1128
Number of pages5
JournalIEEE Wireless Communications Letters
Issue number4
Publication statusPublished - Aug 2019
Externally publishedYes


  • lens-antenna array
  • massive MIMO
  • mmMave
  • multicast
  • unicast

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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