Power Minimization in Distributed Antenna Systems Using Non-Orthogonal Multiple Access and Mutual Successive Interference Cancellation

• Published in: IEEE transactions on vehicular technology Vol. 67; no. 12; pp. 11873 - 11885
• Main Authors: Farah, Joumana, Kilzi, Antoine, Nour, Charbel Abdel, Douillard, Catherine
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.12.2018; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); Institute of Electrical and Electronics Engineers
• Subjects: Antenna arrays; Antennas; Codes; Computer Science; Distributed antenna systems; Electric power distribution; Information Theory; Interference; Minimization; Multiplexing; mutual SIC; Networking and Internet Architecture; NOMA; non-orthogonal multiple access; Nonorthogonal multiple access; Optimization; Power management; power minimization; resource allocation; Resource management; Silicon carbide; Subcarriers; waterfilling; Non Orthogonal Multiple Access; Waterfilling; Distributed Antenna Systems; Power minimization; Mutual SIC; Resource allocation
• ISSN: 0018-9545; 1939-9359
• DOI: 10.1109/TVT.2018.2876592

This paper introduces new approaches for combining non-orthogonal multiple access with distributed antenna systems. The study targets a minimization of the total transmit power in each cell, under user rate and power multiplexing constraints. Several new suboptimal power allocation techniques are proposed. They are shown to yield very close performance to an optimal power allocation scheme. Also, a new approach based on mutual successive interference cancellation of paired users is proposed. Different techniques are designed for the joint allocation of subcarriers, antennas, and power, with a particular care given to maintain a moderate complexity. The coupling of non-orthogonal multiple access to distributed antenna systems is shown to greatly outperform any other combination of orthogonal/non-orthogonal multiple access schemes with distributed or centralized deployment scenarios.