Title :
A Novel Spectrum Sharing Algorithm Based on the Throughput in Cognitive Radio Networks
Author :
Wang, Wei ; Lv, Tiejun ; Ren, Zhiyuan ; Gao, Long ; Liu, Weidong
Author_Institution :
Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Spectrum sharing is of special significance among all the key technologies in cognitive radio (CR), such as spectrum sensing, spectrum management and power allocation etc. Since all the efforts in CR directly aim at enhancing spectrum utilization and spectrum sharing is the final step of all these key technologies, spectrum sharing completely determines whether CR is just a theoretical topic or a practically feasible technology. In this paper, a novel spectrum sharing strategy based on the throughput model in a cognitive radio network (CRN) is proposed, in which maximum theoretical throughput is taken into account on the research of spectrum sharing in CR. And then an optimization problem in the form of binary integer linear programming (BILP) to describe this model is formulated and a directional search (DS) algorithm to solve this BILP problem is designed. Finally, numerical results show that this strategy is quite feasible.
Keywords :
cognitive radio; frequency allocation; integer programming; linear programming; BILP model; binary integer linear programming; cognitive radio network; optimization problem; power allocation; spectrum sharing algorithm; spectrum utilization; Algorithm design and analysis; Biological system modeling; Chromium; Cognitive radio; Communication systems; Communications technology; Integer linear programming; Radio spectrum management; Switches; Throughput;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5303442