A Packet Handling Scheme for QoS Support in an Integrated Satellite/Terrestrial System

ABSTRACT – Since the Internet is today a sort of global multiservice network, a key consideration is support for services with guaranteed quality of service. The challenging objective of this paper is to propose a possible architecture to support Internet QoS-sensitive services (video-conferencing, voice over IP, web browsing,...), thus providing users with end-to-end QoS guarantees. A new hybrid Intserv/Diffserv scheme for handling IP packets by supporting QoS over an integrated, multi-segment network is here presented. It is implemented via a suitable QuAlity of service Support Module (QASM). The main advantages and drawbacks of QASM are discussed and the impact on both system architecture and Multi Mode Mobile Terminal is investigated. Performance evaluation, carried out via computer simulations, confirm the effectiveness of the proposed solution