By Topic

Design and performance of a GPRS based mobile satellite system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Ravishankar, C. ; Hughes Network Syst. Inc., Germantown, MD, USA ; Peri, S. ; Barnett, C.

This paper describes the design and performance of a geo-synchronous mobile satellite system based on enhancements to terrestrial general packet radio service (GPRS). The system provides IP data services with a bidirectional throughput of approximately 144 kbps using transportable laptop sized terminals. The terrestrial GPRS standard was significantly enhanced to achieve better spectral efficiency and improved throughput for satellite operation that is characterized by long delays, spectral scarcity and limited link margins. Enhancements were primarily in the radio specific layers, namely physical layer and MAC/RLC layers, to achieve the necessary spectral efficiency and throughput improvement. The system implements a delay optimized bandwidth on demand (BoD/DAMA), dynamic link adaptation (DLA/DBRA), link layer ARQ, multiple levels of QoS, policy based resource management, load balancing and position based admission control and billing. It permits user mobility across spot-beams within the satellite system as well as between satellite system and terrestrial GPRS.

Published in:

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th  (Volume:6 )

Date of Conference:

26-29 Sept. 2004