On the effective rate of noma in underlay spectrum sharing

Vaibhav Kumar, Zhiguo Ding, Mark F. Flanagan

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


In this paper, we present the delay-constrained performance analysis of a multi-antenna-assisted multiuser non-orthogonal multiple access (NOMA) based spectrum sharing system over Rayleigh fading channels. We derive analytical expressions for the sum effective rate (ER) for the downlink NOMA system under a peak interference constraint. In particular, we show the effect of the availability of different levels of channel state information (instantaneous and statistical) on the system performance.We also show the effect of different parameters of interest, including the peak tolerable interference power, the delay exponent, the number of antennas and the number of users, on the sum ER of the system under consideration. An excellent agreement between simulation and theoretical results confirms the accuracy of the analysis.

Original languageBritish English
Pages (from-to)12220-12225
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Issue number11
StatePublished - 1 Nov 2021


  • Channel state information
  • Effective rate
  • NOMA
  • Spectrum sharing


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