Delay Minimization for NOMA-MEC Offloading

Zhiguo Ding, Derrick Wing Kwan Ng, Robert Schober, H. Vincent Poor

    Research output: Contribution to journalArticlepeer-review


    This letter considers the minimization of the offloading delay for nonorthogonal multiple access assisted mobile edge computing (NOMA-MEC). By transforming the delay minimization problem into a form of fractional programming, two iterative algorithms based on, respectively, Dinkelbach's method and Newton's method are proposed. The optimality of both methods is proved and their convergence is compared. Furthermore, criteria for choosing between three possible modes, namely orthogonal multiple access, pure NOMA, and hybrid NOMA, for MEC offloading are established.
    Original languageEnglish
    Pages (from-to)1875-1879
    JournalIEEE Signal Processing Letters
    Issue number12
    Early online date15 Oct 2018
    Publication statusPublished - 1 Dec 2018


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