Title :
Spectrum sharing with smooth supermodular game in cognitive radio networks
Author :
Cheng, Huili ; Yang, Qinghai ; Fu, Fenglin ; Kwak, Kyung Sup
Author_Institution :
State Key Lab. of ISN, Xidian Univ., Xi´´an, China
Abstract :
In this paper, a supermodular game theoretic approach is investigated for spectrum sharing in cognitive radio networks. We consider a Bertrand competition model, in which primary service providers compete to sell their spare spectrum and then to maximize their individual profits. We demonstrate that the Bertrand competition is a smooth supermodular game, and a round-robin optimization algorithm is developed to obtain the optimal price solutions. Simulation results verify that the algorithm approximately converges to an equilibrium point, and the influence of the exogenous variable on the equilibrium point is analyzed.
Keywords :
cognitive radio; game theory; Bertrand competition model; cognitive radio networks; equilibrium point; round-robin optimization algorithm; spectrum sharing; supermodular game theoretic approach; Bismuth; Cognitive radio; Educational institutions; Games; Joints; Vectors; Bertrand competition; exogenous variable; smooth supermodular game; spectrum sharing;
Conference_Titel :
Communications and Information Technologies (ISCIT), 2011 11th International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-1294-4
DOI :
10.1109/ISCIT.2011.6092168