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Optimal DLC protocol configuration for realistic broadband fixed wireless access networks based on ATM

Configuration optimale d’un protocole de liaison de donnÉes pour réseaux d’accès fixes sans fil basés sur ATM

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Abstract

DLC protocols, scheduling, and multiplexing issues for broadband fixed wireless access networks based on ATM are discussed. The established DSA++ mac protocol has been developed at ComNets and has been widely applied within the German project ATMmobil. It has been a fundamental contribution to the etsi bran standardisation of HIPERLAN /2. The DSA++ is here modified to perform optimal within the fixed wireless access network environment. Therefore, realistic traffic as well as radio channel models for the respective scenarios are introduced. Simulation results are presented, showing the feasibility of the respective protocol stack for offering broadband multimedia services with reasonable quality of service. In addition to this advanced protocol approach, two systems are discussed which are currently under standardisation process. The IEEE 802.16 as well as the European hiperaccess systems are both proposed for fixed wireless access networks. Expected scenarios and applications are presented and basic requirements the standards have to fulfil are derived. As another aspect of access networks, their impact on the global information society is discussed.

Résumé

Cet article analyse les protocoles de liaison de données (data link control, dlc) ainsi que l’ordonnancement et le multiplexage dans les réseaux d’accès large bande sans fil basés sur atm. Le protocole mac dsa+ +, développé à ComNets et utilisé dans le projet allemand ATMmobil a été proposé à I’etsi pour la normalisation de hiperlan/2. On modifie ici dsa++ pour le rendre optimal dans un environnement de réseau d’accès fixe sans fil. Pour cela, on introduit dans les scénarios des modèles réalistes aussi bien pour le trafic que pour la partie radio. Les résultats de simulation ici présentés démontrent la faisabilité d’une telle pile de protocoles permettant de proposer des services multimédias à large bande avec une qualité de service raisonnable. On analyse également deux systèmes en cours de normalisation, l’ieee 802.16 et le système européen HIPERACCESS, tous deux destinés aux réseaux d’accès sans fil. On présente les scénarios et les applications attendus ainsi que les exigences minimales que devront satisfaire les futures normes. On évoque, enfin, l’impact des réseaux d’accès dans la société de l’information.

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Authors and Affiliations

  1. Communication Networks (ComNets), Rrwth Aachen University of Technology, Germany

    Stefan Mangold & Ingo Forkel

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  1. Stefan Mangold
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  2. Ingo Forkel
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Correspondence to Stefan Mangold.

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Mangold, S., Forkel, I. Optimal DLC protocol configuration for realistic broadband fixed wireless access networks based on ATM. Ann. Télécommun. 55, 567–576 (2000). https://doi.org/10.1007/BF02999828

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  • DOI: https://doi.org/10.1007/BF02999828

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