Weighted Proportional Fair Scheduling for Downlink Nonorthogonal Multiple Access

A weighted proportional fair (PF) scheduling method is proposed in the context of nonorthogonal multiple access (NOMA) with successive interference cancellation (SIC) at the receiver side. The new scheme introduces weights that adapt the classical PF metric to the NOMA scenario, improving performanc...

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Bibliographic Details
Published inWireless communications and mobile computing Vol. 2018; no. 2018; pp. 1 - 12
Main Authors Douillard, Catherine, Farah, Joumana, Abdel Nour, Charbel, Hojeij, Marie-Rita
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 01.01.2018
Hindawi
Hindawi Limited
Subjects
Complexity
Design
Downlinking
Efficiency
Nonorthogonal multiple access
Quality of service
Receivers & amplifiers
Resource allocation
Scheduling
Simulation
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Summary:A weighted proportional fair (PF) scheduling method is proposed in the context of nonorthogonal multiple access (NOMA) with successive interference cancellation (SIC) at the receiver side. The new scheme introduces weights that adapt the classical PF metric to the NOMA scenario, improving performance indicators and enabling new services. The distinguishing value of the proposal resides in its ability to improve long-term fairness and total system throughput while achieving a high level of fairness in every scheduling slot. Finally, it is shown that the additional complexity caused by the weight calculation has only a limited impact on the overall scheduler complexity, while simulation results confirm the claimed improvements, making the proposal an appealing alternative for resource allocation in a cellular downlink system.
ISSN:1530-8669
1530-8677
DOI:10.1155/2018/5642765