An optimized routing protocol aiming at improving the expected density of progress of cognitive radio ad hoc networks

作者：Gao Jing^*; Cai Ran

来源：Journal of Computational Information Systems, 2013, 9(24): 9825-9832.

DOI：10.12733/jcis8115

• Analytical results
• Closed-form expression
• Cognitive radio Ad-Hoc networks
• Expected density of progress
• Numerical results
• Optimized routing
• Secondary networks
• Transmission radius

An optimized routing protocol is designed based on selection region for cognitive radio ad hoc networks. A closed-form expression of the expected density of progress (EDoP) is given by modeling secondary network overlaid with primary network in the same two-dimension space. The reference transmission radius R and the direction angle φ, which mainly determine the selection region of the routing protocol, are optimized, respectively. The lower bound of optimum R is obtained when φ is certain and the bounds of optimum φ are derived for different range of R. Numerical results show that the EDoP is a convex function with respect to R and φ, and the bounds of them agree with the analytical results.

• 出版日期2013
• 单位北京大学