Journal
IEEE TRANSACTIONS ON COMMUNICATIONS
Volume 67, Issue 1, Pages 375-390Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCOMM.2018.2870894
Keywords
Non-orthogonal multiple access (NOMA); mobile edge computing (MEC); offloading delay; energy consumption
Funding
- UK EPSRC [EP/P009719/2]
- National Natural Science Foundation of China (NSFC) [61731017]
- 111 Project [111-2-14]
- U.S. National Science Foundation [CNS-1702808]
- H2020-MSCA-RISE-2015 [690750]
- EPSRC [EP/P009719/2] Funding Source: UKRI
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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.
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