TY - JOUR
T1 - Unveiling the Importance of SIC in NOMA Systems - Part II
T2 - New Results and Future Directions
AU - Ding, Zhiguo
AU - Schober, Robert
AU - Poor, H. Vincent
N1 - Funding Information:
Manuscript received May 17, 2020; revised July 7, 2020; accepted July 23, 2020. Date of publication July 28, 2020; date of current version November 11, 2020. The work of Zhiguo Ding was supported by the UK Engineering and Physical Sciences Research Council under grant number EP/P009719/2. The work of H. Vincent Poor was supported by the U.S. National Science Foundation under Grant CCF-1908308. The associate editor coordinating the review of this letter and approving it for publication was X. Lei. (Corresponding author: Zhiguo Ding.) Zhiguo Ding is with the Department of Electrical Engineering, Princeton University, Princeton, NJ 08544 USA, and also with the School of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, U.K. (e-mail: [email protected]).
Publisher Copyright:
© 1997-2012 IEEE.
PY - 2020/11
Y1 - 2020/11
N2 - In most existing works on non-orthogonal multiple access (NOMA), the decoding order of successive interference cancellation (SIC) is prefixed and based on either the users' channel conditions or their quality of service (QoS) requirements. A recent work on NOMA assisted semi-grant-free transmission showed that the use of a more sophisticated hybrid SIC scheme can yield significant performance improvements. This letter illustrates how the concept of hybrid SIC can be generalized and applied to different NOMA applications. We first use NOMA assisted mobile edge computing (MEC) as an example to illustrate the benefits of hybrid SIC, where new results for offloading energy minimization are presented. Then, future directions for generalizing hybrid SIC with adaptive decoding order selection as well as its promising applications are discussed.
AB - In most existing works on non-orthogonal multiple access (NOMA), the decoding order of successive interference cancellation (SIC) is prefixed and based on either the users' channel conditions or their quality of service (QoS) requirements. A recent work on NOMA assisted semi-grant-free transmission showed that the use of a more sophisticated hybrid SIC scheme can yield significant performance improvements. This letter illustrates how the concept of hybrid SIC can be generalized and applied to different NOMA applications. We first use NOMA assisted mobile edge computing (MEC) as an example to illustrate the benefits of hybrid SIC, where new results for offloading energy minimization are presented. Then, future directions for generalizing hybrid SIC with adaptive decoding order selection as well as its promising applications are discussed.
KW - hybrid successive interference cancellation (SIC)
KW - mobile edge computing (MEC)
KW - Non-orthogonal multiple access (NOMA)
UR - http://www.scopus.com/inward/record.url?scp=85096179428&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2020.3012601
DO - 10.1109/LCOMM.2020.3012601
M3 - Article
AN - SCOPUS:85096179428
SN - 1089-7798
VL - 24
SP - 2378
EP - 2382
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 11
M1 - 9151208
ER -