A flexible quality of service model for mobile ad hoc network

bile Ad-hoc NETworks (MANETs) is a challenging task. Most of the proposals in the literature only ad-dress certain aspects of the QoS support, e.g., QoS routing, QoS medium access control (MAC) and re-source reservation. However, none of them proposes a QoS model for MANETs. Meanwhile, two QoS models have been proposed for the Internet, viz., the Integrated Services (IntServ) model and the Dier-entiated Services (DiServ) model, but these models are aimed for wired networks. In this paper, we propose a exible QoS model for MANETs (FQMM) which considers the character-istics of MANETs and combines the high quality QoS of IntServ and service dierentiation of Di-Serv. Salient features of FQMM include: dynam-ics roles of nodes, hybrid provisioning and adaptive conditioning. Preliminary simulation results show that FQMM achieves better performance in terms of throughput and service dierentiation than the best-eort model. I