Title :
Dynamic channel allocation supporting multi-service over cognitive radio networks
Author :
Xiuhe Zhang ; Li Guo ; Tao Song ; Wenjun Xu ; Yonghua Li ; Jiaru Lin
Author_Institution :
Key Lab. of Universal Wireless Commun., Minist. of Educ., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Multi-Service channel allocation supporting video service and data service simultaneously for frequency/time slotted cognitive radio (CR) networks is addressed. Our objective is to maximize the total network throughput while guaranteeing quality of service (QoS) requirements of both services. Meanwhile, the optimization problem is formulated into a non-linear integer programming problem. For this, first, we discuss its optimal solution and then we design two kinds of efficient heuristic algorithms. Numerical results reveal that our heuristic channel allocation algorithm with negotiation can achieve near-optimal throughput well satisfying the QoS requirements with simplicity.
Keywords :
channel allocation; cognitive radio; integer programming; nonlinear programming; quality of service; QoS requirements; cognitive radio networks; data service; dynamic channel allocation; frequency-time slotted cognitive radio networks; heuristic algorithms; multiservice channel allocation; near-optimal throughput; nonlinear integer programming problem; optimal solution; optimization problem; quality of service; video service; Multimedia communication; Quality of service;
Conference_Titel :
Wireless Personal Multimedia Communications (WPMC), 2013 16th International Symposium on
Conference_Location :
Atlantic City, NJ
