Fair energy-efficient resource allocation for spectrum leasing in cognitive radio networks. - Cheng Sun; Yanbo Ma; Piming Ma; Liuqing Ma (ChinaCom, 2015)

Resource allocation with delay QoS guarantees for spectrum sharing in cognitive radio networks. - Yanbo Ma; Piming Ma; Xiao Yang; Qiang Liu 026; Liuqing Ma (PIMRC, 2015)

Delay-QoS-Driven Secrecy Power Allocation in Underlay Secure Cognitive Radio System. - Liuqing Ma; Yanbo Ma; Piming Ma (VTC Spring, 2016)

Energy-Efficient Resource Allocation for Secure Cognitive Radio Network With Delay QoS Guarantee. - Zhiquan Bai; Liuqing Ma; Yanan Dong; Piming Ma; Yanbo Ma (IEEE Syst. J., 2019)