Receiver Design to Employ Simultaneous Wireless Information and Power Transmission with Joint CFO and Channel Estimation

Akashkumar Rajaram, Rui Dinis, Dushantha Nalin K. Jayakody, Neeraj Kumar

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Radio-frequency energy harvesting (EH) is one of the enabling technologies for the next-generation wireless communication systems. EH techniques are specifically used to improve the energy efficiency of the system. Recently, the simultaneous wireless information and power transmission (SWIPT) protocol is adapted for EH. In this paper, we design a new receiver for joint carrier frequency offset (CFO) and channel estimation on single-carrier modulations with frequency-domain equalization along with SWIPT implementation for EH by using the pilot signal. The pilot signal is a highly energized signal, which is superimposed with the information signal. The superimposed signal is used not only to transmit power for EH purposes but also to estimate the CFO and channel conditions. The receiver is designed to accommodate the strong interference levels in the channel estimation and data detection. The proposed scheme offers a flexible design method and efficient resource utilization. We validate our analytical results using simulations.

Original languageEnglish
Article number8579622
Pages (from-to)9678-9687
Number of pages10
JournalIEEE Access
Volume7
DOIs
Publication statusPublished - 1 Jan 2019

Keywords

  • CFO estimation
  • Channel estimation
  • energy harvesting
  • SC-FDE
  • SWIPT

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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