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IEEE Transactions on Wireless Communications
Volume 1 Number 1, January 2002

Table of Contents for this issue

Complete paper in PDF format

Traffic Management Techniques to Face the Effects of Intrinsic Delays in Geostationary Satellite Networks

Antonio Iera, Associate Member, IEEE Antonella Molinaro, Associate Member, IEEE and Salvatore Marano Member, IEEE

Page 145.

Abstract:

In this paper, a new scheme for the management of real-time traffic over high-latency broadband satellite networks is described. Early studies on this topic have been reported in [8], with reference to an integrated terrestrial-satellite platform. In this paper, further enhancement is introduced into the traffic management scheme with a view to both the reduction of intrinsic impairments caused by the adverse operational environment and the achievement of better performance levels and QoS guarantees. A real-time traffic handling strategy, including distributed connection admission control (CAC) and traffic resource management (TRM) schemes, is harmonized with an in-band signaling technique for burst-based bandwidth request and with an effective policy for the allocation of radio resources. Furthermore, the impact of traffic reshaping at the satellite terminal on the CAC-TRM technique is tested. Added features reduce adverse effects of the long propagation delay across the satellite link and show outstanding effectiveness in improving CAC-TRM performance and network resource efficiency, while matching service quality requirements. The main reason for the improved performance of the overall management scheme is the adaptability to different traffic profiles conveyed over satellite links.

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