Energy-Efficient Vector OFDM PLC Systems with Dynamic Peak-Based Threshold Estimation

Augustine Ikpehai, Bamidele Adebisi, Khaled Maaiuf Rabie, Michael Fernando, Andrew Wells

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Power line communication (PLC) has made remarkable strides to become a key enabler of smart grid and its applications. Existing PLC systems are based on orthogonal frequency division multiplexing (OFDM), which has a high peak-to-average power ratio (PAPR). This paper presents vector OFDM (VOFDM) with advanced signal processing at the receiver to improve the energy efficiency of the PLC system. Results show that, due to its low PAPR properties, VOFDM is less sensitive to impulsive noise and provides a reduction of 5.8 dB in transmit power requirement relative to conventional OFDM. Furthermore, unlike the existing impulsive noise cancellation methods, the adopted signal processing technique also improves the SNR at the receiver by 2.1 dB, which further reduces the power requirement of the PLC transceiver. Together, these can simplify design, reduce cost, and improve energy efficiency of future PLC transceivers.

Original languageEnglish
Article number7935539
Pages (from-to)10723-10733
Number of pages11
JournalIEEE Access
Volume5
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Dynamic power threshold-based estimation
  • energy efficiency
  • power-line communication (PLC)
  • signal-to-noise ratio (SNR)
  • smart grid
  • vector OFDM (VOFDM)

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering

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