Intelligent TCP for the Heterogeneous Internet

Within the heterogeneous Internet, a host needs to connect with different hosts which spread across the world. These hosts are also installed with different operating systems. Hence, TCP implementation of a host need run on different kinds of network paths and talk with different TCP versions. The classical TCP implementation, that uses a fixed set of TCP congestion control algorithms for all, can not always achieve good performance in the current heterogeneous Internet. In this report, Intelligent TCP, that can dynamically change congestion control algorithms for each connection according to its current network path characteristics, is proposed to improve TCP performance in the heterogeneous Internet. The framework of Intelligent TCP, that support dynamically per connection and/or network congestion control configuration, will be presented. We will also investigate how to classify the type of network path used by a TCP connection based on its own per-connection statistics. Further mechanisms, that are responsible to select congestion control algorithms based on the kind of network path, are also discussed.