Authors: M.C. Domingo, D. Remondo
Addresses: Telematics Engineering Department, Catalonia University of Technology (UPC), Castelldefels, Barcelona 08860, Spain. ' Telematics Engineering Department, Catalonia University of Technology (UPC), Castelldefels, Barcelona 08860, Spain
Abstract: We propose a new protocol, named Differentiated Services-Stateless Wireless Ad Hoc Networks (DS-SWAN), that enables ad hoc networks connected to fixed DiffServ domains to cooperate to support end-to-end Quality of Service (QoS). DS-SWAN warns nodes in the ad hoc network when congestion is excessive for the correct functioning of real-time applications. These wireless nodes react by slowing down best-effort traffic. Simulation results indicate that DS-SWAN significantly improves end-to-end delays for real-time flows without starvation of background traffic. In this work, we introduce sequence numbers in warning messages to prevent neighbouring nodes from overreacting.
Keywords: wireless ad hoc networks; QoS; quality of service; voice over internet protocol; VoIP; DiffServ; wireless networks.
International Journal of Wireless and Mobile Computing, 2010 Vol.4 No.3, pp.179 - 187
Published online: 28 Jul 2010 *Full-text access for editors Access for subscribers Purchase this article Comment on this article