基于GPS的Internet端到端时延测量的实现

Implementation of Measuring Internet End-to-End Delay Based on GPS

网络行为测量是网络行为分析的基础,而端到端的时延又是网络行为测量中一个重要的参数。但是由于传统的端到端测量存在时钟不同步问题,因此测量的误差较大。文中采用基于GPS接收机的同步方法设计出网络时延测量仪来测量端到端时延,解决了收发时钟不同步的问题,提高了测量的精度。

Network measurement is the foundation of the network behavior analysis. Internet end-to-end delay is an important parameter of network behavior. Since the clock of the sender is nonsynchronous with that of the receiver, there is large error in the measurement results. This paper develops a new method which keeps synchronous between sender and receiver by GPS receiver to measure the Internet end-to-end delay directly. The method efficiently improves the precision of the measurement.