An Analytical Model of the IEEE 802.3ah MAC Protocol for EPON-based Access Systems Un modèle analytique du protocole MAC des arbres optiques passifs Ethernet
نویسندگان
چکیده
Ethernet Passive Optical Networks (EPON) access systems are considered as an alternative to ADSL for high speed access to the Internet. Supported by the Ethernet First Mile Alliance and the IEEE, the MPCP protocol has been adopted as the standardized MAC protocol for EPONs. Moreover, the IPACT dynamic bandwidth allocation mechanism has been proposed for hierarchical multiplexing. Today, IPACT is considered as interesting complement to MPCP for dynamic bandwidth allocation over EPONs. In this paper, we propose an original analytical model of the MPCP+IPACT protocol. Numerical results obtained from this model are commented and compared to computer simulations.
منابع مشابه
An Analytical Model of the IEEE 802.3ah MAC Protocol for EPON-based Access Systems
Ethernet Passive Optical Networks (EPON) access systems are considered as an alternative to ADSL for high speed access to the Internet. Supported by the Ethernet First Mile Alliance and the IEEE, the MPCP protocol has been adopted as the standardized MAC protocol for EPONs. Moreover, the IPACT dynamic bandwidth allocation mechanism has been proposed for hierarchical multiplexing. Today, IPACT i...
متن کاملA Bandwidth Guaranteed Polling MAC Protocol for Ethernet Passive Optical Networks
While the backbone networks have experienced substantial changes in the last decade; the access networks have not changed much. Recently, passive optical networks (PONs) seem to be ready for commercial deployment in access networks due to the maturity of a number of enabling technologies. long distance and reduced maintenance. Among PON technologies, the Ethernet PON (EPON) presently being stan...
متن کاملAmélioration de la Performance des Protocoles Routage et MAC pour une Meilleure QoS dans un MANET
Résumé—L’un des problèmes très sérieux auxquels est confronté un MANET (Mobile Ad hoc Network) est la durée de vie très limitée de ses nœuds mobiles. Ce qui amplifie cette contrainte est l’absence d’échange d’informations sur l’état des nœuds mobiles entre le protocole MAC (Medium Acces Control) et le protocole de routage qui, en plus de leurs fonctionnalités, peuvent supporter des mécanismes d...
متن کاملTournament MAC with Constant Size Congestion Window for WLAN
In the context of radio distributed networks, we present a generalized approach for the Medium Access Control (MAC) with fixed congestion window. Our protocol is quite simple to analyze and can be used in a lot of different situations. We give mathematical evidence showing that our performance is tight, in the sense that no protocol with fixed congestion window can do better. We also place ours...
متن کاملRTXP : A Localized Real-Time Mac-Routing Protocol for Wireless Sensor Networks
Protocols developed during the last years for Wireless Sensor Networks (WSNs) are mainly focused on energy efficiency and autonomous mechanisms (e.g. self-organization, selfconfiguration, etc). Nevertheless, with new WSN applications, appear new QoS requirements such as time constraints. Real-time applications require the packets to be delivered before a known time bound which depends on the ap...
متن کامل