网络层析成像技术能够通过测量端到端的时延来估计网络内部链路的时延特征.在单播网络层析成像技术研究现状上,提出了一种基于移动代理的网络信息收集机制,采用带约束的最优化方法对网络内部链路时延进行了估计.同时,通过仿真实验验证了在存在较大测量误差的网络条件下,该文算法提高了链路时延分布的推测精度.
Inference of network internal link characteristics is an very important aspacts of Network Tomography Technology. Compared to traditional methods used to estimate link delay characteristics in Network Tomography,we propose a new method based on constrained optimization method to improve the precision of estimation of link delay cumulant generating functions,by using mobile agent framework to gather the constrained information in network.