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Differentiated services (DiffServ), dynamic flow admission control, and multi-level priority and preemption (MLPP) capabilities provide an architectural foundation for quality of service (QoS) in tactical networks, collectively working to optimize the utilization of tactical links, subject to variable impairments. Admission control assures QoS by admitting traffic only within available capacity; inevitably,...
Wireless ad hoc networks experienced a great diffusion thanks to their simple deployment everywhere and whenever needed. Already used for entertainment applications (e.g., instant messaging) or for specific domains (e.g., military) we think such technology is mature enough to support also real-time services provision.Real time applications pose several challenges, in particular issues such as limited...
Differentiated services can ensure that traffic on some codepoints receives higher quality of service (QoS) than traffic on other codepoints, but without additional mechanisms it cannot target any particular QoS. Congestion-based pricing has been suggested as a method to target QoS in other network architectures. Here, we investigate whether congestion-based pricing can be used to control aggregate...
Recently, many pricing schemes and proposals have been introduced in order to cope with the vast change of Internet and its architecture. Simultaneously, different quality of service (QoS) mechanisms have been introduced to support multi-class based applications. In addition, combined implementation of integrated services (IntServ) over differentiated services (DiffServ) QoS architectures attracted...
To enhance the deployment of DiffServ network we propose two mechanisms, i.e. connection admission control (CAC) facility and hierarchical scheduling. In this paper we describe both facilities and report the results of the simulation work. Simulation work was conducted using ns-2. The CAC scheme is parameter-based, where three distinct types of DiffServ traffic were given bandwidth allocation using...
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