TY - JOUR
T1 - Delay Minimization for NOMA-MEC Offloading
AU - Ding, Zhiguo
AU - Ng, Derrick Wing Kwan
AU - Schober, Robert
AU - Poor, H. Vincent
N1 - Funding Information:
Manuscript received July 18, 2018; revised August 31, 2018; accepted October 3, 2018. Date of publication October 15, 2018; date of current version November 8, 2018. The work of Z. Ding was supported in part by the UK EPSRC under Grant EP/L025272/2 and in part by EC-H2020 under Grant 690750. The work of D. W. K. Ng was supported by the Australian Research Councils Discovery Early Career Researcher Award funding scheme (Project DE170100137). The work of H. V. Poor was supported by the U.S. National Science Foundation under Grant CNS-1702808. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Feifei Gao. (Corresponding author: Zhiguo Ding.) Z. Ding is with the School of Electrical and Electronic Engineering, the University of Manchester, Manchester, U.K. (e-mail:, [email protected]).
Publisher Copyright:
© 1994-2012 IEEE.
PY - 2018/12
Y1 - 2018/12
N2 - 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.
AB - 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.
KW - Non-orthogonal multiple access (NOMA) and mobile edge computing (MEC) offloading
UR - http://www.scopus.com/inward/record.url?scp=85055054681&partnerID=8YFLogxK
U2 - 10.1109/LSP.2018.2876019
DO - 10.1109/LSP.2018.2876019
M3 - Article
AN - SCOPUS:85055054681
SN - 1070-9908
VL - 25
SP - 1875
EP - 1879
JO - IEEE Signal Processing Letters
JF - IEEE Signal Processing Letters
IS - 12
M1 - 8492422
ER -