In order to reduce the user latency, the web sites disseminate some of their information to surrogate caches located closer to the users. We discuss a simple differentiated service type architecture for content delivery networks. A pricing scheme is next proposed to complement this architecture and provide fair service to the subscribed publishers. Then, we show that the suggested pricing schem...

This paper presents a new scalable buffer-management scheme for IP Differentiated Services. The scheme consists of a Differentiated Random Drop (DRD) algorithm using feedback from a virtual scheduler. DRD choses a queue to perform an early packet drop to avoid congestion according to a specific probability function. First it will be shown that DRD in conjunction with first-come firstserved sche...

The goal of this paper is to make an architecture framework for wireless sensor networks that is used for water management application. The proposed framework focuses on offering differentiated services for sensor nodes. Differentiated services are supported based on the information passed from the sensor node to differentiated service motes. Three differentiated services are offered gold, silv...

The Assured Forwarding (AF) based service in a Differentiated Services (DiffServ) network fails to provide bandwidth assurance among competing aggregates under certain conditions, for example, where there exists a large disparity in the round-trip times, packet sizes, or target rates of the aggregates, or there exist non-adaptive aggregates. Several mechanisms have been proposed in order to add...

Next generation Internet architectures will consider the Differentiated Services paradigm for the provision of quality of service to individual customers needs and applications. This paper addresses the definition and deployment of specific network services in a DiffServ environment. The proposed network services and the underlying traffic engineering methods are analyzed and simulated. Simulat...

The increasing demand of Quality of Service (QoS) has lead in the last years to the definition of architectures that modify the best-effort Internet, though in a backward compatible way. The Integrated Services (IS) architecture, tightly coupled with the RSVP protocol, is first one that has been developed by IETF. Soon after its deployment some experimentation of IS networks raised a serious pr...