EECS CSPL SEMINAR SERIES
WINTER TERM 1999


Amer Hassan

Dr. Amer Hassan

Teledesic Corporation

amer@teledesic.com



Thursday, April 1
4:30 - 5:30 PM
Room 1001 EECS


Emerging Satellite Systems

Abstract-

This seminar presents an overview of emerging satellite systems. The first part of the seminar focuses on mobile satellite systems with Iridium as a specific example. Iridium is a system consisting of 66 satellites plus spares at a LEO orbit. This system is the first global mobile satellite system in operation. The satellites perform onboard processing and use intersatellite links to provide low latency and improved links. The goal of the Iridium system is to complement the coverage of terrestrial cellular systems.

The second part of the seminar is a brief overview of broadband, fixed service, satellite systems. In particular, the second part will focus on the Teledesic System. Teledesic consists of a constellation 288 satellites at a LEO orbit to globally provide fiber like quality at several Mbps information rates on the uplink. The satellites also perform onboard processing and use intersatellite links to provide for a very attractive, low latency end-to-end communications.

Following an overview of the Iridium System and the Teledesic System, the channel models are presented, and design issues are considered.




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