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Abstract
Session 3 - Quality of Service Architectures for Satellite Based Internet
Speaker: Sastri Kota, Technical Consultant, Loral Skynet
Abstract
Quality of Service (QoS) is an absolutely critical part of broadband satellite to support emerging
bandwidth-intensive applications. This presentation provides QoS framework including application
specific performance and current QoS architecture overview for terrestrial networks. Three candidate
architectures based on (a) Integrated Services-IntServ (b) Differentiated Services-DiffServ and
(c) IntServ/DiffServ for Satellite IP networks are discussed. Examples of both global and access
satellite networks are included. A brief discussion on the return channel multiple access is given.
A CDMA based Spread ALOHA One Code (SAOC) access scheme is described. The need for QoS architecture
evaluations and performance tests is emphasized.
Biography
Sastri Kota is a technical consultant with Loral Skynet in areas of network architectures and protocols,
for new business development and International standards and regulatory matters. Mr. Kota has several years
of experience in military and commercial network systems design, analysis and held technical and management
positions at Lockheed Martin, SRI International, Ford Aerospace, XEROX, The MITRE and Computer Sciences Corp.
Currently, he is the US Chair for the ITU-R Working Party 4B and Rapporteur for the ITU-R WP 4B FSS Ka-band
performance. He was the Chair for the Wireless ATM working group of the ATM Forum.
Mr. Kota made significant contributions in satellite ATM and IP networks, QoS, traffic management, and DAMA.
He has published over 90 technical papers in journals and conference proceedings. He has been the guest editor
of feature topics – Broadband Satellite Networks, for IEEE Communications. He is the guest editor of
International Journal of Satellite Communications on Satellite IP QoS. He is an Associate Fellow of the AIAA,
Senior Member of the IEEE and Member of the ACM. |
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