Estimating User-Perceived TCP Throughput

摘要

A passive network measurement based solution for estimating user-perceived TCP throughput in a mobile PS network is provided. Instead of direct detection of TCP bulk data periods and server side limitations, the diversity of TCP connection end-points on the Internet side is exploited. The TCP throughput at an interface of the mobile network from/to each server on the Internet side during a file/object transfer of bulk date periods is monitored and measured and the servers are ranked according to their throughput statistics. The top performing servers are grouped into classes by statistical algorithms. The throughput samples from the users towards the servers belonging to the top group of highest average throughput are averaged to obtain a proper estimation for the user-perceived TCP throughput.