通信学报
• 学术通信 • 上一篇 下一篇
刘卓超,杨 力,姜 奇,王 巍,曹春杰
出版日期:
发布日期:
基金资助:
Online:
Published:
摘要: Ad Hoc网络中存在关键节点,它们的失效会严重影响网络性能。为了有效地选取重要且可信的关键节点,给出了关键节点的定义,提出了一种基于信任评估的关键节点选取算法。首先利用节点收缩法计算节点的重要度,然后结合D-S证据理论,建立节点的信任评估模型,通过该模型得到节点的客观信任值来判断节点的可信度,最后综合考虑节点的重要度和可信度来选取关键节点。仿真实验结果表明,通过该方法得到的关键节点失效后将造成网络性能急剧下降。
Abstract: There are some critical nodes in Ad Hoc networks, and the failure of these critical nodes can critically affect the performance of the network. For the aim of selecting the important and trusted critical nodes in Ad Hoc networks, the definition of critical nodes is given, meanwhile, a critical nodes selection algorithm based on trust evaluation is proposed. By using the node contraction, the importance degree of the node is calculated. Then combined with D-S evidence theory, the trust evaluation model of critical node is presented, which is used to obtain the objective trust of the node and to judge the credibility of the node. Finally, the critical nodes are selected by considering of the importance degree and the credibility of the node. Simulation results show that when those critical nodes are failure, selected by the proposed algorithm, the network performance is decreasing significantly.
刘卓超,杨 力,姜 奇,王 巍,曹春杰. 基于信任评估的Ad Hoc网络关键节点选取算法[J]. 通信学报.
0 / / 推荐
导出引用管理器 EndNote|Reference Manager|ProCite|BibTeX|RefWorks
链接本文: https://www.infocomm-journal.com/txxb/CN/
https://www.infocomm-journal.com/txxb/CN/Y2014/V35/IZ2/29