TY - GEN
T1 - Opportunistic Temporal Fair Scheduling for Non-Orthogonal Multiple Access
AU - Shahsavari, Shahram
AU - Shirani, Farhad
AU - Erkip, Elza
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Non-orthogonal multiple access (NOMA) is one of the key enabling techniques for the next generation of mobile networks. Opportunistic scheduling is necessary to fully exploit the multiplexing gains in NOMA systems. In this paper, scheduling for NOMA systems under temporal fairness constraints is considered. The objective is to maximize the system utility (e.g. throughput) subject to constraints on the average active time for each user. It is shown that threshold based scheduling strategies (TBS) achieve optimal performance in terms of system utility. Furthermore, it is shown that any optimal strategy is equivalent to a TBS. An iterative algorithm based on the Robbins-Monro method is introduced which constructs the optimal TBS by finding optimal thresholds for a given system utility metric. Numerical simulations are provided to evaluate the proposed approach.
AB - Non-orthogonal multiple access (NOMA) is one of the key enabling techniques for the next generation of mobile networks. Opportunistic scheduling is necessary to fully exploit the multiplexing gains in NOMA systems. In this paper, scheduling for NOMA systems under temporal fairness constraints is considered. The objective is to maximize the system utility (e.g. throughput) subject to constraints on the average active time for each user. It is shown that threshold based scheduling strategies (TBS) achieve optimal performance in terms of system utility. Furthermore, it is shown that any optimal strategy is equivalent to a TBS. An iterative algorithm based on the Robbins-Monro method is introduced which constructs the optimal TBS by finding optimal thresholds for a given system utility metric. Numerical simulations are provided to evaluate the proposed approach.
UR - http://www.scopus.com/inward/record.url?scp=85062857969&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062857969&partnerID=8YFLogxK
U2 - 10.1109/ALLERTON.2018.8636027
DO - 10.1109/ALLERTON.2018.8636027
M3 - Conference contribution
AN - SCOPUS:85062857969
T3 - 2018 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
SP - 391
EP - 398
BT - 2018 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
Y2 - 2 October 2018 through 5 October 2018
ER -