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A Quality of Service Support Module (QASM) for a Wireless Multi-Segment Integrated 3G Network
Authors:Paolo Dini  Francesco Delli Priscoli
Affiliation:(1) Centre Tecnólogic de Telecomunicacions de Catalunya (CTTC), Av. Canal Olimpia s/n, Castelldefels, 08860, Spain;(2) Dipartimento di Informatica e Sistemistica (DIS), Università di Roma “La Sapienza”, Via Eudossiana 18, Rome, 00184, Italia
Abstract:Deployment of IP multimedia services with guaranteed Quality of Service (QoS) is a primary requirement for Beyond 3G (B3G) systems. In this paper we propose a new architecture to support Internet QoS-sensitive services (e.g., video-conferencing, voice over IP, interactive gaming), thus providing users with end-to-end QoS guarantees. In particular, the paper discloses a new hybrid Intserv/Diffserv scheme for handling IP packets and an interworking procedure with the RSVP protocol which allows to support QoS over an integrated, multi-segment network. Such scheme is implemented by means of a suitable Quality of service Support Module (QASM). Advantages and drawbacks of QASM are discussed and the impact on both system architecture and Multi-Mode Mobile Terminal is investigated. Performance evaluations, carried out via computer simulations, confirm the effectiveness of the proposed solution.
Keywords:Quality of Service  Heterogeneous networks  Radio resource management  Virtual home environment
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