Theoretische Grundlagen der Kommunikationstechnik

Invitation to A Talk by Prof. Edmund Yeh (A.v.H. Research Award winner) from Northeastern University, Boston, Massachusetts

Time13th of July 2015, 2pm  
LocationHFT building, 6th floor, Room HFT 617, Einsteinufer 25, 10587 Berlin  
TitleNamed Data Networking: Theory and Optimization for a New Internet Architecture  


Emerging information-centric networking architectures, such as Named Data Networking (NDN), are currently changing the landscape networking research. Information-centric networking replaces the traditional client server model of communications with one based on the identity of data or content. This abstraction more accurately reflects how the Internet is primarily used today: instead of being concerned about communicating with specific nodes, end users are mainly interested in obtaining the data they want.

A primary goal of information-centric networking is the optimal utilization of both bandwidth and storage for efficient content distribution. This highlights the need for joint design of traffic engineering and caching strategies, in order to optimize network performance in view of both current traffic loads and future traffic demands. We present a systematic framework for joint dynamic interest request forwarding and dynamic cache placement and eviction, within the context of the NDN architecture. The framework employs a virtual control plane which operates on the user demand rate for data objects in the network, and an actual plane which handles Interest Packets and Data Packets. We develop distributed algorithms within the virtual plane to achieve network load balancing through dynamic forwarding and caching, there by maximizing the user demand rate that the NDN network can satisfy. Numerical experiments within a number of network settings demonstrate the superior performance of the resulting algorithms for the actual plane in terms of low user delay and high rate of cache hits. Joint work with Tracey Ho, Ying Cui, Michael Burd, Ran Liu, and Derek Leong.


About Professor Yeh:

Professor Yeh is the recipient of the Alexander von Humboldt Research Fellowship, the Army Research Office Young Investigator Award, the Winston Churchill Scholarship, the National Science Foundation and Office of Naval Research Graduate Fellowships, the Barry M. Goldwater Scholarship, the Frederick Emmons Terman Engineering Scholastic Award, and the President's Award for Academic Excellence (StanfordUniversity). Professor Yeh serves as the Secretary of the Board of  Governors of the IEEE Information Theory Society.  He recently received  the Best Paper Award at the 2015 IEEE International Conference on Communications (ICC) Communication Theory Symposium, London, UK.