Enhanced PSK-LoRa

Ali Waqar Azim, Jorge L.Gulfo Monsalve, Marwa Chafii

Research output: Contribution to journalArticlepeer-review


This letter introduces enhanced phase shift keying Long Range (ePSK-LoRa) as an alternative to classical modulation approaches for low power wide area networks. By employing different combinations of phase and frequency shifts of the orthogonal chirp and using signal averaging, ePSK-LoRa achieves higher energy efficiency and higher spectral efficiency (SE) relative to the state-of-the-art schemes. Besides comprehensively elucidating the orthogonality of the transmitted symbols, we present maximum likelihood and absolute value detectors. The simulation results depict that besides affording higher SE, ePSK-LoRa requires lower signal-to-noise ratio per bit for correct detection making it a viable alternative to the classical approaches.

Original languageEnglish (US)
Pages (from-to)612-616
Number of pages5
JournalIEEE Wireless Communications Letters
Issue number3
StatePublished - Mar 1 2022


  • IoT
  • LoRa
  • low power wide area networks
  • phase shift keying

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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