单向时延测量中的时间同步问题

网络性能测量一直是人们所关注的话题。通过对网络的连通性、时延、丢包率、带宽等的测量去掌握网络实时的运行动态。在网络单向时延测量中，由于各个主机时钟误差的存在使得测量结果精确性不高。针对两种不同类型的误差设计了两种方法，并且实验也证实了这两种方法的可行性及正确性。

Time Synchronization in One-way Delay Measurement

The measurement of network performance has always been a hot topic. The real-time dynamic operation of network is obtained by the measurement of connectivity, time delay, packet loss rate, bandwidth and so on. In one-way delay measurement, the existence of host clock error makes the mearsurement less accurate. Aiming at the two different clock errors, two methods are designed, and the experiment has proved the feasibility and correctness of these two methods.