naa a22 4500 510791468 CHVBK 20180411083321.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0796-y doi (NATIONALLICENCE)springer-10.1007/s11277-012-0796-y Power Control and Allocation for MIMO Broadcast Channels in Cognitive Radio Networks [Elektronische Daten] [Hai-Lin Xiao, Shan Ouyang] This paper considers multiple-input multiple-output broadcast channels in cognitive radio networks which consist of a cognitive base station (CBS), K secondary users (SUs) and N primary users (PUs). The multiantenna-based CBS concurrently operates with the PUs. The channel state information for SUs is assumed to be perfectly known at the CBS. To ensure the quality of service of PUs and maximize sum-rate capacity of SUs, two problems are considered: (1) What is the optimal power control of CBS? (2) What are the optimal power allocations of SUs? A two-level game is presented to jointly consider the benefits of power control of CBS and power allocations of SUs. Under this game model, the corresponding game algorithms are also proposed. Finally, numerical simulation results are provided to examine the performance of our proposed algorithms. Springer Science+Business Media, LLC., 2012 MIMO broadcast channels nationallicence Cognitive radio networks nationallicence Beamforming nationallicence Game theory nationallicence Power allocation nationallicence Xiao Hai-Lin School of Information and Communications, Guilin University of Electronic Technology, 541004, Guilin, Guangxi, People's Republic of China aut Ouyang Shan School of Information and Communications, Guilin University of Electronic Technology, 541004, Guilin, Guangxi, People's Republic of China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/1(2013-07-01), 71-82 0929-6212 71:1<71 2013 71 11277 https://doi.org/10.1007/s11277-012-0796-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0796-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xiao Hai-Lin School of Information and Communications, Guilin University of Electronic Technology, 541004, Guilin, Guangxi, People's Republic of China aut NATIONALLICENCE 700 1- Ouyang Shan School of Information and Communications, Guilin University of Electronic Technology, 541004, Guilin, Guangxi, People's Republic of China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/1(2013-07-01), 71-82 0929-6212 71:1<71 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer