Unitary-precoded single-carrier waveforms for high mobility: detection and channel estimation

Tharaj Thaj, Emanuele Viterbo

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

4 Citations (Scopus)


This paper presents unitary-precoded single-carrier (USC) modulation as a family of waveforms based on multiplexing the information symbols on time domain unitary basis functions. The common property of these basis functions is that they span the entire time and frequency plane. The recently proposed orthogonal time frequency space (OTFS) and orthogonal time sequency multiplexing (OTSM) based on discrete Fourier transform (DFT) and Walsh Hadamard transform (WHT), respectively, fall in the general framework of USC waveforms. In this work, we present channel estimation and detection methods that work for any USC waveform and numerically show that any choice of unitary precoding results in the same error performance. Lastly, we implement some USC systems and compare their performance with OFDM in a real-time indoor setting using an SDR platform.

Original languageEnglish
Title of host publication2022 IEEE Wireless Communications and Networking Conference (WCNC)
EditorsAli Abedi
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781665442664
ISBN (Print)9781665442671
Publication statusPublished - 2022
EventIEEE Wireless Communications and Networking Conference 2022 - Austin, United States of America
Duration: 10 Apr 202213 Apr 2022
https://wcnc2022.ieee-wcnc.org/ (Website)

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
PublisherIEEE, Institute of Electrical and Electronics Engineers
ISSN (Print)1525-3511
ISSN (Electronic)1558-2612


ConferenceIEEE Wireless Communications and Networking Conference 2022
Abbreviated titleWCNC 2022
Country/TerritoryUnited States of America
Internet address


  • DCT
  • Delay- Sequency
  • Delay-Doppler
  • DFT
  • OTFS
  • OTSM
  • Software-Defined Radio
  • USRP
  • WHT

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