学术讲座

演讲者：李大刚博士（比利时鲁汶大学博士）

时  间：2010年10月25日  16:10-16:50pm

地  点：北大深研院C203教室

题  目：End-to-End Rate Control in Heterogeneous Mobile Networks异构移动网络中的端到端速率控制

 摘要:

Rate control is of crucial importance to the stability and fairness of any large shared networks. For a best-effort network such as the IP-based Internet, it has to be implemented in a distributed fashion that relies on the communication parties to be self-regulative according to their observation on the network conditions. However, traditional rate control algorithms developped for fixed networks are no longer up for the job in the emerging heterogeneous mobile networking environment, where networks of different types converge into the same IP core and interconnect with each other. New issues will arise when user of an active conversation switches his point of connection, as the diversion of the data flow and the abrupt changes in the conditions of the underlying networks are not foreseen by the old transport protocols. New adaptation techniques are required to either extend these protocols with mobility support or develop new protocols suitable for the mobile environment. On the other hand, diversed network technologies and emerging new services also bring new thought to the design principles of transport protocols. It might be more benificial to decouple rate control from other transport functionalities and have a solution flexible enough to cope with the dynamics in the networks than separate protocols for every envisioned new service and/or networking technology. In this talk we will discuss the mobility solutions for rate control adaptation and a new modular methodology for transport protocol development.