Outage Probability Analysis in a Cooperative Non-orthogonal Multiple Access Relaying Network

Yangyang Zhang, Erchin Serpedin

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

Abstract

To meet the unprecedented demand for larger capacity in the fifth generation (5G) networks, non-orthogonal multiple access (NOMA) is proposed owing to its massive connectivity and high user fairness. In this paper, NOMA is recognized in a cooperative relaying network to analyze the network performance under Nakagami-m fading channels. Particularly, imperfect channel state information (ICSI) is invoked to model the practical network environment. The outage probability problem is developed, and exact closed-form expression for the outage probability at each user is also derived. Then the two bounds, i.e., the upper and lower bounds, of the outage probability are given to show the network performance limits. To elaborate further, the outage performance in the high signal-to-interference-plus-noise ratio (SINR) regime is investigated to track the existence of error floor (EF). Simulation results reveal that: i) NOMA can help to achieve better outage performance than orthogonal multiple access (OMA); and ii) EF is exist due to the consideration of the channel estimation error.

Original languageEnglish
Title of host publicationProceedings of the IEEE Workshop on Signal Processing Systems, SiPS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages241-246
Number of pages6
ISBN (Electronic)9781538663189
DOIs
Publication statusPublished - 31 Dec 2018
Event2018 IEEE Workshop on Signal Processing Systems, SiPS 2018 - Cape Town, South Africa
Duration: 21 Oct 201824 Oct 2018

Publication series

NameIEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation
Volume2018-October
ISSN (Print)1520-6130

Conference

Conference2018 IEEE Workshop on Signal Processing Systems, SiPS 2018
CountrySouth Africa
CityCape Town
Period21/10/1824/10/18

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Keywords

  • imperfect channel state information
  • Nakagami-m fading channels
  • Non-orthogonal multiple access (NOMA)
  • the outage probability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Applied Mathematics
  • Hardware and Architecture

Cite this

Zhang, Y., & Serpedin, E. (2018). Outage Probability Analysis in a Cooperative Non-orthogonal Multiple Access Relaying Network. In Proceedings of the IEEE Workshop on Signal Processing Systems, SiPS 2018 (pp. 241-246). [8598441] (IEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation; Vol. 2018-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SiPS.2018.8598441