Performance Comparison Between Two Kinds of Priority Schemes in Cognitive Radio Networks

Author(s):  
Yuan Zhao ◽  
Wuyi Yue
2012 ◽  
Vol 457-458 ◽  
pp. 931-939
Author(s):  
Xiao Fei Wang ◽  
Xi Zhang ◽  
Yue Bing Chen ◽  
Lei Zhang ◽  
Chao Jing Tang

An improved-immune-clonal-selection based spectrum assignment algorithm (IICSA) in cognitive radio networks is proposed, combing graph theory and immune optimization. It uses constraint satisfaction operation to make encoded antibody population satisfy constraints, and realizes the global optimization. The random-constraint satisfaction operator and fair-constraint satisfaction operator are designed to guarantee efficiency and fairness, respectively. Simulations are performed for performance comparison between the IICSA and the color-sensitive graph coloring algorithm. The results indicate that the proposed algorithm increases network utilization, and efficiently improves the fairness.


2015 ◽  
Vol 14 (6) ◽  
pp. 1272-1286 ◽  
Author(s):  
Li Sun ◽  
Wei Zheng ◽  
Naveen Rawat ◽  
Vikramsinh Sawant ◽  
Dimitrios Koutsonikolas

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