摘要
根据信任管理机制提出了一种基于可信度的动态模型,结合可信机制、贝叶斯定理、自适应机制和Beta分布,通过动态计算和更新结点的信任度值来识别和隔离恶意结点,最后通过对SIP协议的扩展对模型的性能进行仿真验证。仿真结果表明,提出的动态模型可以有效的提高恶意结点的识别和隔离率。
A trust degree-based dynamic Voice over Internet Protocol（VoIP） securing model over WMN was presented,which integrates trustworthy mechanism,Bayes rule,self-adaption mechanism and Beta distribution to recognize and isolate malicious nodes via dynamic calculation and renewing trust degree value of nodes.Simulation was conducted by expanding Session Initiation Protocol（SIP） to evaluate the model＇s performance.The results indicate that the dynamic VoIP securing model can improve the rate of the recognition and isolation of malicious nodes.
出处
《福建工程学院学报》
CAS
2010年第3期295-299,共5页
Journal of Fujian University of Technology
关键词
VOIP
无线MESH网络
会话初始化协议
可信度
Voice over Internet Protocol（VoIP）
wireless mesh network
Session Initiation Protocol（SIP）
trust degree
