naa a22 4500 51079775X CHVBK 20180411083342.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11277-013-1013-3 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1013-3 Sensing Confidence Level-Based Joint Spectrum and Power Allocation in Cognitive Radio Networks [Elektronische Daten] [Guoru Ding, Qihui Wu, Jinlong Wang] Cognitive radio (CR) has been extensively investigated in the past decade to tackle the contradiction between wireless spectrum shortage and underutilization. In this paper, we present a unified analytical framework to design PHY-layer spectrum sensing and MAC-layer resource scheduling jointly for CR networks. A key parameter, named sensing confidence level (SCL), is introduced to characterize the presence of imperfect sensing, and bridge the designs between kinds of spectrum sensing schemes and resource allocation algorithms. The SCL-based joint design of spectrum and power allocation is formulated as a mixed integer non-linear optimization problem and Lagrange duality theory is introduced to make the problem tractable. The proposed joint design framework in this paper provides a baseline for comparing different spectrum sensing schemes plus bandwidth and power allocation algorithms. Numerical results demonstrate the effectiveness of the proposed framework. Springer Science+Business Media New York, 2013 Cognitive radio nationallicence Sensing confidence level nationallicence Spectrum sensing nationallicence Resource allocation nationallicence Joint design nationallicence CSS : Cooperative spectrum sensing nationallicence CR : Cognitive radio nationallicence PN : Primary network nationallicence CRN : Cognitive radio network nationallicence SU : Secondary user nationallicence PU : Primary user nationallicence SSI : Soft sensing information nationallicence HSI : Hard sensing information nationallicence RSI : Raw sensing information nationallicence SBS : secondary base station nationallicence LHGH : Local one-bit hard decision and global one-bit hard decision nationallicence LHGS : Local one-bit hard decision and global soft fusion nationallicence LSGS : local soft sensing and global soft fusion nationallicence CSI : Channel state information nationallicence SCL : Sensing confidence level nationallicence SEP : Sensing error percentage nationallicence Ding Guoru College of Communications Engineering, PLA University of Science and Technology, 210007, Nanjing, China aut Wu Qihui College of Communications Engineering, PLA University of Science and Technology, 210007, Nanjing, China aut Wang Jinlong College of Communications Engineering, PLA University of Science and Technology, 210007, Nanjing, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/1(2013-09-01), 283-298 0929-6212 72:1<283 2013 72 11277 https://doi.org/10.1007/s11277-013-1013-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1013-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ding Guoru College of Communications Engineering, PLA University of Science and Technology, 210007, Nanjing, China aut NATIONALLICENCE 700 1- Wu Qihui College of Communications Engineering, PLA University of Science and Technology, 210007, Nanjing, China aut NATIONALLICENCE 700 1- Wang Jinlong College of Communications Engineering, PLA University of Science and Technology, 210007, Nanjing, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/1(2013-09-01), 283-298 0929-6212 72:1<283 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer