Simultaneous wireless information and power transfer based on time-frequency block allocation in OFDM cooperative communication system

Xin Liu, Xueying Liu, Min Jia, Feng Li, Tariq S. Durrani

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Abstract

In this paper, simultaneous wireless information and power transfer based on time-frequency block allocation (TFBA-SWIPT) is proposed to save the energy of an orthogonal frequency-division multiplex (OFDM) decode-and-forward cooperative communication system, by allocating different resource blocks for information decoding and energy harvesting at the relay and destinations. The joint allocation of time-frequency blocks and power is optimized to maximize the transmission rate of the destination, while ensuring the transmission rate and energy supply of the relay. The time-frequency block pairing algorithm and the block power allocation algorithm are integrated to achieve the optimal solution. Simulation results illustrate the benefits of using TFBA-SWIPT in the OFDM cooperative communication system over time-varying channels.

Original languageEnglish
Number of pages4
JournalIEEE Systems Journal
DOIs
Publication statusAccepted/In press - 27 Jun 2021

Keywords

  • cooperative communication system
  • decoding
  • frequency division multiplexing
  • OFDM
  • optimization
  • orthogonal frequency-division multiplexing (OFDM)
  • relay
  • relays
  • resource management
  • simultaneous wireless information and power transfer based on time-frequency block allocation (TFBA-SWIPT)
  • time-varying channels
  • transmission rate

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