Vol.3 No.1 (February 2013)
Modeling Spectrum Handoff Strategy of OSA Model and Evaluating Its Performance Using CPN
In Cognitive Radio Networks (CRN), spectrum mobility effectively improves the user’s Quality of Service (QoS), and has become one of the important technologies to ensure the priority of primary users and solve the scarcity of spectrum resources. An executable top-down hierarchical Colored Petri Net (CPN) model is developed for spectrum handoff in CRN. It breaks through Markov Chain’s (MC) explicit limitation, which includes MC’s memoryless property and proneness to state space explosion in evaluating handoff process, and the simulation results show that CPN offers significant advantages over MC in modeling handoff strategies and evaluating their performance with less computational complexity in addition to its flexibility and adaptability to different scenarios.
姚媛媛 , 陆彦辉 , 杨守义 (2013) OSA模型下频谱切换策略的CPN建模及性能评价。 计算机科学与应用， 3， 36-41. doi: 10.12677/CSA.2013.31007
Copyright © 2015 Hans Publishers Inc. All rights reserved.