【摘要】 对ad hoc网络中移动节点的故障诊断问题进行了研究,提出应用于分级ad hoc网络中的"基于簇的比较诊断算法"·"基于簇的比较诊断算法"针对"基于比较的故障诊断算法"系统开销大、在诊断期间网络拓扑变化时部分节点无法诊断的缺陷,利用簇首对诊断过程的集中控制功能,减小了诊断过程的系统开销,并突破了诊断期间要求网络拓扑不变的限制·仿真实验表明,基于簇的比较诊断算法比基于比较的故障诊断算法具有更好的性能和更小的系统开销·更多还原

【Abstract】 ?The issue of fault diagnosis for mobile hosts in ad-hoc networks was studied. The cluster-based comparison diagnosis algorithm is proposed to use in hierarchical ad-hoc networks so as to take the place of comparison-based fault diagnosis algorithm. Making use of the concentrative control function of clusterheads within clusters, this algorithm can reduce greatly the overhead expenses for the diagnosis to a system in comparison to the comparison-based fault diagnosis algorithm and break through the limitation that the network topology must be fixed in the process of diagnosis. Simulation results indicate that it has a better performance with lower cost than the comparison-based fault diagnosis algorithm.更多还原