Events - Colloquia & Seminars

CCIS Colloquia Fall 2004
Building Blocks for Engineering QoS Expectations over Best-Effort Networks

Prof. Shivkumar Kalyanaraman
Department of Electrical, Computer and Systems Engineering (ECSE)
Rensselaer Polytechnic Institute

Date:Dec 02, 2004
Talk:200 Richards Hall (12:00 p.m.)

Abstract

This talk will explore how techniques like closed-loop control and distributed multi-path traffic engineering can be used in multi-homed, overlay or peer-to-peer network contexts to engineer QoS expectations over best-effort networks. The goal is to enable home-to-home (H2H) multimedia applications such as streaming, instant multimedia messaging and conferencing. In our closed-loop control work, we show how the parameters of a class of "accumulation-based" congestion control techniques can be modified to support QoS expectations as an extension of "fairness" ideas. In our traffic engineering work, we develop an evolutionary architectural framework ``BANANAS'' aimed at simplifying the introduction of multipath routing in the Internet. A key idea in the framework is the observation that a path can be encoded as a short hash (``PathID'') of a sequence of globally known identifiers, thereby avoiding the need for explicit signaling protocols. Finally, we show how the performance diversity in a large number of overlay paths can be aggregated and matched to inherent content diversity in multimedia streaming applications to build the abstraction of an "end-to-end broadband pipe".

Biography

Shivkumar Kalyanaraman is an Associate Professor at the Department of Electrical, Computer and Systems Engineering at Rensselaer Polytechnic Institute in Troy, NY. He received a B.Tech degree from the Indian Institute of Technology, Madras, India in July 1993, followed by M.S. and Ph.D. degrees in Computer and Information Sciences at the Ohio State University in 1994 and 1997 respectively. His research is in topics such as congestion control architectures, quality of service (QoS), last-mile community wireless and free-space optical networks, network management, multimedia networking, and performance analysis. His special interest lies in developing the inter-disciplinary areas overlapping with networking. He was selected by MIT's Technology Review Magazine in 1999 as one of the top 100 young innovators for the new millenium.