While Integrated Services provides per-flow guarantees, Differentiated Services (DiffServ) [1] follows the philosophy of mapping multiple flows into a few service levels—an approach sometimes referred to as Class of Service (CoS). DiffServ does not define any signaling mechanisms, but instead, packets are marked with a DiffServ Code Point (DSCP), which provides information about the QoS request...

The growing use of multimedia communication applications with specific bandwidth and real time delivery requirements has created the need for a new Internet in which traditional best effort datagram delivery can coexist with additional enhanced Quality of Service (QoS) transfers. There are many aspects in QoS control. In this article, we address the problem of the support of Expedited Forwardin...

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Internet communications today play a major role in data transport within the local as well as the wide area. On one hand, since emerging networked applications require a variety of different communication services, the number of service classes offered by service providers has to be targeted at this demand. On the other hand, assuming that a set of different traffic classes are offered by servi...

Due to the increasing requirements on quality of service (QoS) for multimedia applications, wide area networks must be able to provide end-to-end performance guarantees. The ATM protocol, which offers an extensive traffic management functionality, achieves QoS in networks by providing various categories with different quality of service features. However, it is expensive and incompatible to the...

In this paper, the simulated performance of a number of differentiated services traffic conditioners is studied under a range of synthetic traffic conditions. The traffic conditioners are compared using two performance measures which are defined and justified in the paper. In the initial simulation the traffic conditioner performance differed in one measure but not the other. Further experiment...

It is crucial for telecom operators to shift from a subsidy-centered to a servicecentered marketing strategy. As the market reaches its saturation point, the effectiveness of customer acquisition through the traditional subsidy decreases and offering differentiated services for existing customer retention is critical. This study aims at finding out factors affecting consumer churning intention ...

In this paper we present a scalability study on interdomain tunnels using Bandwidth Brokers. Our approach is based on collections of Autonomous Systems called regions.We analyzed our architecture through simulation. Our analysis results show that scalability of the approach depends on the size of the regions, and as the size of the region decreases, scalability of the approach increases.We show...

Given that organizations find it increasingly hard to differentiate products and services, customer experience is viewed as the ’new battleground’. New digital technologies, such as mobile telecommunication services, are not immune from this and providers are increasingly having to consider all aspects of their offering – concentrating not just on the technology, but on the wider information sy...