With the number of e-Business applications dramatically increasing, a service level agreement (SLA) will play an important part in Web services. The SLA is a combination of several quality of services (QoS), such as security, performance, and availability, agreed between a customer and a service provider. Most existing research addresses only one of these QoS metrics. Furthermore, in the case o...

All the new emerging QoS service architectures are motivated by the desire to improve the overall performance of IP networks. Integrated Services (Intserv), Differentiated Services (Diffserv), MultiProtocol Label Switching (MPLS) and constraint-based routing are all technologies starting to coexist together in today’s Internet to provide means for the delivery of end-to-end QoS to applications ...

Ridesharing is a promising approach for reducing congestion and pollution, many variants have been studied in the literature over past decades. In this paper, we consider novel setting where individuals walk to common pick-up point ride together single drop-off from they their final destination. This requires finding optimal composition of riders meeting points, as well an equitable distributio...

This paper describes the proposed Differentiated Services schemes, makes comparison between proposals, and matches them against the proposed Differentiated Services (DS) byte and the DS architecture proposed by the Differentiated Services Working Group (DSWG). In addition an application feedback is introduced as a new DS service. This method enables applications to prioritize packets within an ...

The provision of scalable quality-of-service (QoS) guarantees on wavelength-divisionmultiplexing ( WDM) networks is an important and challenging issue for the next generation Internet. One of the important performance metrics in a QoS-capable WDM network is the call blocking probability. Recently, a proportional differentiation model has been proposed as an effective method ,for scalable differ...

The paper discusses several approaches to use the Differentiated Services Architecture for providing better services to the users of the World Wide Web. In the future Internet a user wants to have the possibility to select between different service levels to get specific web-contents. The sender orientation of the Differentiated Services Architecture imposes some difficulties in providing the u...

The paper discusses several approaches to use the Differentiated Services Architecture for providing better services to the users of the World Wide Web. In the future Internet a user wants to have the possibility to select between different service levels to get specific web-contents. The sender orientation of the Differentiated Services Architecture imposes some difficulties in providing the u...

The Differentiated services architecture (diffserv) proposed by the Internet Engineering Task Force (IETF) [1] provides service differentiation in the Internet in an efficient and scalable manner. The central idea of diffserv is that the Type Of Service field (TOS) in the IPv4 header can be used to prioritize traffic in an aggregated manner. In this paper we work on the resource management impl...

The Differentiated Services (DiffServ) approach will also bring benefits for multicast applications which need quality of service support. For instance, a highly reliable multicast service can be provided based on the proposed Expedited Forwarding behavior [8]. Such a service may also be used advantageously in a global computing cluster infrastructure, e.g., for distribution of synchronization ...

Even though broadband high speed Internet service has been always attractive choice to Internet users, its deployment has not been very successful. Until very recently most broadband access providers offer a single quality level and price. We propose a definition of Quality of Service (QoS) in a broadband network, present a measurement of the proposed QoS, and discuss its implementability. Furt...