NOMA with imperfect SIC implementation

Talgat Manglayev, Refik Caglar Kizilirmak, Yau Hee Kho, Nurzhan Bazhayev, Ilya Lebedev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)


In this paper, non-orthogonal multiple access (NOMA) with successive interference cancellation (SIC) technique for downlink channel of next generation wireless network and its security issues are discussed. In NOMA, signals for all user equipment (UEs) are superimposed before transmission and then decoded at each UE implementing SIC. SIC relies on decoding and subtracting the signals in sequence until it reaches its desired signal. The decoding order at each UE, however, must match with the user index in the cancellation sequence. In case of mismatch, UEs will not obtain their signals and re-request their messages from the BS which will further increase the processing time that is already high for a regular SIC receiver. Numerical results show the performance of SIC at the UE side. The time spent for decoding the received signal at the UE with and without user mismatch is discussed. The unusual longer decoding times are further discussed as potential external network threat.

Original languageEnglish
Title of host publication17th IEEE International Conference on Smart Technologies, EUROCON 2017 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781509038435
Publication statusPublished - Aug 15 2017
Event17th IEEE International Conference on Smart Technologies, EUROCON 2017 - Ohrid, Macedonia, The Former Yugoslav Republic of
Duration: Jul 6 2017Jul 8 2017


Conference17th IEEE International Conference on Smart Technologies, EUROCON 2017
CountryMacedonia, The Former Yugoslav Republic of


  • Future Radio Access
  • NOMA
  • OMA
  • SIC
  • Wireless Security

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Instrumentation
  • Management of Technology and Innovation
  • Artificial Intelligence
  • Information Systems
  • Signal Processing

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