A Global Architecture for a Quality of Service Model for Ad Hoc Networks
Hassene Bouhouch, Sihem Guemara El Fatmi · International Journal of Computer Applications · 2010
Ad Hoc mobile Network (AHNs) may include a plurality of mobile nodes each including a wireless communications device with limited communication resources.Achieving QoS (Quality of Service) in AHNs has been an important research topic in the last years.Hence, we are interested in this paper by the proposition of a global architecture for the offer of a QoS model for AHNs users.Our proposition is based on traffic classification and requires metrics definition allowing the expression of the QoS requirements in order to provide differentiated treatment according to traffic classes.One of the major contributions of this paper concerns the proposition of a novel QoS routing protocol based on delay and bandwidth requirements and called QSDB.Then, we are interested by the proposition of a novel contention resolution mechanism allowing an admission control oriented service differentiation mechanism called DS_CAP.Finally, we propose a QoS reservation mechanism for AHNs, called QSRR.The mechanism uses a traffic classification and requires available bandwidth estimation definition.The advantages of our propositions are shown thanks to some simulation results that are detailed in the end of this paper.