Title :
The Optimal Time-Dependent Throughput Analysis of Cognitive Radio Networks
Author :
Liang, Junhua ; Zhang, Wenjun
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
The users of cognitive radio network are working in a highly time-varying environments. The classic ergodic capacity definition fails to capture the dynamic property of wireless channels. In the paper, we set up a new model to characterize the time-varying property of wireless channels. Firstly, we established a dynamic optimal rate allocation model under time-varying channel capacity. Due to the distributed property of cognitive radio terminals, we extend the model to differential game approach and turn it into a Boundary Value Problem(BVP). We give an analytic open-loop Nash equilibria solution of the differential games model.
Keywords :
boundary-value problems; channel capacity; cognitive radio; differential games; time-varying channels; wireless channels; BVP; boundary value problem; cognitive radio network; differential game approach; dynamic optimal rate allocation model; ergodic capacity; open-loop Nash equilibria solution; optimal time-dependent throughput analysis; time-varying channel capacity; wireless channel; Cognitive radio; Games; Mathematical model; Optimization; Throughput; Wireless sensor networks;
Conference_Titel :
Communications and Mobile Computing (CMC), 2011 Third International Conference on
Conference_Location :
Qingdao
Print_ISBN :
978-1-61284-312-4
DOI :
10.1109/CMC.2011.74
