Energy‐efficient resource allocation in relay‐aided orthogonal frequency division multiplexing cognitive radio networks with quality of service provisioning

• Published in: International journal of communication systems Vol. 33; no. 16
• Main Authors: Yan, Feiyu, Zhao, Jihong, Qu, Hua, Xu, Xiguang
• Format: Journal Article
• Language: English
• Published: Chichester Wiley Subscription Services, Inc 10.11.2020
• Subjects: Cognitive radio; Computer simulation; DF relays; energy efficiency; Mathematical programming; OFDM; Optimization; Orthogonal Frequency Division Multiplexing; Provisioning; QoS provisioning; Quality of service; Quality of service architectures; Relay; Resource allocation; Subcarriers

Summary This paper investigates the energy‐efficient resource allocation problem in orthogonal frequency division multiplexing (OFDM)‐based cognitive radio (CR) networks with multiple decode‐and‐forward relays. In order to maximize the system energy efficiency (EE), we jointly optimize the relay sel...