Impact of Non-Orthogonal Multiple Access on the Offloading of Mobile Edge Computing

Zhiguo Ding, Pingzhi Fan, H. Vincent Poor

Research output: Contribution to journalArticlepeer-review

187 Scopus citations


This paper considers the co-existence of two important communication techniques, non-orthogonal multiple access (NOMA) and mobile edge computing (MEC). Both NOMA uplink and downlink transmissions are applied to MEC, and analytical results are developed to demonstrate that the use of NOMA can efficiently reduce the latency and energy consumption of MEC offloading. In addition, various asymptotic studies are carried out to reveal the impact of the users' channel conditions and transmit powers on the application of NOMA to MEC are quite different from those in conventional NOMA scenarios. Computer simulation results are also provided to facilitate the performance evaluation of NOMA-MEC and also verify the accuracy of the developed analytical results.

Original languageEnglish (US)
Article number8467377
Pages (from-to)375-390
Number of pages16
JournalIEEE Transactions on Communications
Issue number1
StatePublished - Jan 2019

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


  • Non-orthogonal multiple access (NOMA)
  • energy consumption
  • mobile edge computing (MEC)
  • offloading delay


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