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EnglishThe deployment of highly powerful and sophisticated new-generation satellite broadband systems implies that a large portion of their bandwidth on the radio interface has to be devoted to conveying signalling information. Adequately dimensioning such a signalling bandwidth is an important design objective allowing the effective exploitation of the overall system resources and the cost-effective provision of a target quality of service to multimedia traffic. The performance of two basic techniques for accessing the signalling channels in a reference multimedia geostationary platform is investigated in this paper: random (slotted Aloha) and dedicated access. It is demonstrated here that dedicated access, despite rational appearances, allows 50% saving of signalling bandwidth while satisfying both the system and user constraints in terms of grade and quality of service respectively. This is accomplished by providing a statistical centralized connection admission control on Earth and an intelligent scheduling of the resource requests on board the satellite.
| Titolo: | Dimensioning and Effective Handling of the Signalling Channels in a Multimedia GEO Satellite Platform | |
| Autori: | ||
| Data di pubblicazione: | 2005 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/20.500.12318/5659 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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