A Cat Swarm Optimization-Based QoS Routing in ICN.
ICNC-FSKD(2018)
Abstract
Information-Centric Networking (ICN), as a promising networking paradigm, is facing some challenges with its routing, such as content retrieval, efficiency, etc. In this paper, a Cat Swarm Optimization (CSO)based Quality of Service (QoS)Routing mechanism (CSOQR)is proposed to solve the routing problems in ICN. Firstly, a network model is built to imitate biological behaviors including link model and intelligent node model. Secondly, a useru0027s Quality of Experience (QoE)is mapped to the corresponding QoS level, thus the useru0027s QoS satisfaction is calculated. Then, the forwarding probability of an interface is calculated according to useru0027s QoS satisfaction, and two forwarding interfaces are selected respectively based on Tracing Mode Face Choosing (TMFC)and Seeking Mode Face Choosing (SMFC). In this way, multiple content sources can be found through multiple paths to improve routing success rate, and we devise a migration strategy to balance node load. Finally, the proposed mechanism is simulated on both CERNET and CERNET2. Simulation results show that the proposed CSOQR has good performance in terms of routing success rate, routing hop count and node load.
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Key words
Information-Centric Networking,Quality of Service,Quality of Experience,Cat Swarm Optimization,routing
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