naa a22 4500 510798470 CHVBK 20180411083345.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11277-013-1145-5 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1145-5 Optimization of Time-Domain Combining Cooperative Spectrum Sensing in Cognitive Radio Networks [Elektronische Daten] [Hang Hu, Youyun Xu, Ning Li] In cognitive radio networks, the secondary users take chances to access the spectrum without causing interference to the primary users so that the spectrum access is dynamic and somewhat opportunistic. Therefore, spectrum sensing is of significant importance. In this paper, we propose a novel time-domain combining cooperative spectrum sensing framework, in which the time consumed by reporting for one secondary user is also utilized for other secondary users' sensing. We focus on the optimal sensing settings of the proposed sensing scheme to maximize the secondary users' throughput and minimize the average sensing error probability under the constraint that the primary users are sufficiently protected. Some simple algorithms are also derived to calculate the optimal solutions. Simulation results show that fundamental improvement of the achievable throughput and sensing performance can be obtained by optimal sensing settings. In addition, our proposed scheme outperforms the general frame structure on either achievable throughput or the performance of average sensing error probability. Springer Science+Business Media New York, 2013 Time-domain combining nationallicence Cooperative spectrum sensing nationallicence Cognitive radio networks nationallicence Throughput nationallicence Average sensing error probability nationallicence Hu Hang Institute of Communications Engineering, PLA University of Science and Technology, No. 2 Biaoying, Yudao Street, 210007, Nanjing, China aut Xu Youyun Institute of Communications Engineering, PLA University of Science and Technology, No. 2 Biaoying, Yudao Street, 210007, Nanjing, China aut Li Ning Institute of Communications Engineering, PLA University of Science and Technology, No. 2 Biaoying, Yudao Street, 210007, Nanjing, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/4(2013-10-01), 2229-2249 0929-6212 72:4<2229 2013 72 11277 https://doi.org/10.1007/s11277-013-1145-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1145-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hu Hang Institute of Communications Engineering, PLA University of Science and Technology, No. 2 Biaoying, Yudao Street, 210007, Nanjing, China aut NATIONALLICENCE 700 1- Xu Youyun Institute of Communications Engineering, PLA University of Science and Technology, No. 2 Biaoying, Yudao Street, 210007, Nanjing, China aut NATIONALLICENCE 700 1- Li Ning Institute of Communications Engineering, PLA University of Science and Technology, No. 2 Biaoying, Yudao Street, 210007, Nanjing, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/4(2013-10-01), 2229-2249 0929-6212 72:4<2229 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer