Robust power-splitting SWIPT beamforming for broadcast channels

Jialing Liao, Muhammad R. A. Khandaker, Kai-Kit Wong

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


This letter considers the multiple-input single-output (MISO) broadcast system for simultaneous wireless information and power transfer (SWIPT) using receiver power splitting and aims to optimize jointly the beamforming vectors and the power splitting ratios for minimizing the transmit power of the base station (BS) subject to the individual signal-to-interference-plusnoise ratio (SINR) and the energy-harvesting constraints at the mobile stations (MSs). However, the CSI is assumed imperfect but has a deterministic uncertainty region. Unlike existing attempts that resort to iterations guided by semidefinite relaxation (SDR), we propose a reverse convex nonsmooth optimization algorithm, which provides the near-optimal rank-one solution.

Original languageEnglish
Pages (from-to)181-184
Number of pages4
JournalIEEE Communications Letters
Issue number1
Publication statusPublished - 1 Jan 2016


  • Broadcast
  • Energy harvesting
  • MISO
  • Optimal beamforming
  • Power splitting

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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