Performance analysis of downlink-NOMA over generalized-k fading channels


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Aslan K., Güçlüoğlu T.

PHYSICAL COMMUNICATION, vol.48, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48
  • Publication Date: 2021
  • Doi Number: 10.1016/j.phycom.2021.101414
  • Title of Journal : PHYSICAL COMMUNICATION
  • Keywords: NOMA, Generalized-K fading channel, Outage probability, Average channel capacity, Symbol error rate, NONORTHOGONAL MULTIPLE-ACCESS, PROBABILITY ANALYSIS, OUTAGE PERFORMANCE, SECRECY ANALYSIS, ERROR RATES, DF RELAY, SYSTEMS, OPTIMIZATION, ALLOCATION, NETWORKS

Abstract

Due to the increasing demand for higher capacity in mobile communication devices, non-orthogonal multiple access (NOMA) has become a promising technique. Compared to existing orthogonal multiple access methods, NOMA can serve multiple users with better spectral efficiency by allowing co-channel interference, thus its reliability performance over various channel models needs further research. In this paper, closed-form outage probability, average channel capacity and symbol error rate are derived for a downlink-NOMA system with an arbitrary number of users over generalized-K fading channels. Finally, theoretical findings are validated via Monte Carlo simulations for several channel parameters. (C) 2021 Elsevier B.V. All rights reserved.