Gestione della QoS in WMN: progetto di un'architettura basata sul modello MPLS e definizione di algoritmi di "QoS Path selection"

Progetto di un'architettura MPLS per reti Wireless Mesh Network;descrizione del protocollo di routing Radio-Aware OLSR e del Traffic Engineering Database; implementazione di quattro Path Computation Element; valutazione delle prestazioni

Path Computation Algorithms in NS2

Originally designed to improve the efficiency of packets forwarding, MPLS provides support for Traffic Engineering and network resilience. Constrained-based path computation is a key building block for Traffic Engineering in MPLS networks, since it allows to set-up LSPs along paths that satisfy QoS constraints. This paper deals with two distinct categories of path computation algorithms: on-line path computation algorithms adn on-line multi path algorithms. All these algorithms have been implemented in NS2 as an extension of OSPF-TE\ns and integrated with RSVP-TE\ns