Existing protocols for congestion control assume that each party always follows its protocol to share the network bandwidth fairly with competing traffic. The growth and commercialization of the Internet, however, has created incentives for misbehavior that rewards the misbehaving party with a self-beneficial bandwidth allocation. Furthermore, the widespread deployment of open-source operating systems provided end hosts with ample opportunities for manipulating the traditional congestion control protocols.

In this project, we explore mechanisms for designing robust congestion control protocols for such untrusted network environments.