MIMO self-coherent OFDM

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Self-coherent orthogonal frequency division multiplexing (OFDM) was introduced to wireless communications as a promising physical layer technique due to its complete immunity against phase noise, simple radio frequency (RF) front-end receiver, and good spectral efficiency achievability. In this paper, we propose an Alamouti coded multiple-input multiple-output (MIMO) self-coherent OFDM and analyze its performance in terms of diversity order. We prove theoretically that the system exhibits a diversity loss due to a doubly fading effect experienced by both the RF carrier and OFDM subcarriers. To compensate this loss, we exploit the smart carrier positioning (SCP) technique in conjunction with the proposed system. We present a novel diversity analysis, which proves the system with SCP approaches full diversity. Finally, we show by simulations that the system with SCP outperforms the other known non-coherent OFDM schemes as well as the conventional MIMO-OFDM, when phase noise presents.

Original languageEnglish
Title of host publication2017 IEEE 86th Vehicular Technology Conference (VTC Fall 2017)
EditorsWeihua Zhuang, Alagan Anpalagan
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages5
ISBN (Electronic)9781509059355
Publication statusPublished - 8 Feb 2018
EventIEEE Vehicular Technology Conference 2017 (Fall) - Hilton Toronto, Toronto, Canada
Duration: 24 Sep 201727 Sep 2017
Conference number: 86th
https://ieeexplore.ieee.org/xpl/conhome/8283330/proceeding (Proceedings)


ConferenceIEEE Vehicular Technology Conference 2017 (Fall)
Abbreviated titleVTC Fall 2017
Internet address


  • Diversity order
  • MIMO
  • Non-coherent
  • OFDM
  • Phase noise
  • Self-coherent

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