Secrecy Sum Rate Maximization in Non-orthogonal Multiple Access - Zhang, Yi; Wang, Hui-Ming; Yang, Qian; Ding, Zhiguo (IEEE communications letters, 2016)
Keywords: Closed-form solutions; Non-orthogonal multiple access; Optimization; Physical layer; physical layer security; power allocation; Quality of service; Resource management; Security; Transmitters; power allocation; physical layer security; Non-orthogonal multiple access; optimization