Quality of service (QoS) is playing a vital role in communications system in emerging technologies. QoS means providing consistent and predictable data delivery service. QoS is dealt with providing real-time as well as non-real-time services. In this paper swarm based handover approach is proposed in UMTS /WLAN technologies. The proposed approach is used to evaluate the QoS Characteristics. The...

The availability of more and more Web services provides great varieties for users to design service processes. However, there are situations that services or service processes cannot meet users’ requirements in functional QoS dimensions (e.g., translation quality in a machine translation service). In those cases, composing Web services and human tasks is expected to be a possible alternative so...

Software is gradually becoming more built by composing web services to support enterprise applications integration; thus, making the process of composing web services a significant topic. The Quality of Service (QoS) in web service composition plays a crucial role. As such, it is important to guarantee, monitor, and enforce QoS and ability to handle failures during execution. Therefore, an urge...

As the number of available Web services increases, there is a growing demand to find the service that best fits the user’s requirements. Especially, when a set of services fulfilling user’s functional requirements have been discovered, among these services which one will be invoked by the user depends mostly on the Quality of Services (QoS). The problem, however, is that the service providers m...

We address the issue of how to provide basic Quality of Service (QoS) in optical burst-switched WDM networks with limited fiber delay lines (FDLs). Unlike existing buffer-based QoS schemes, the novel offsettime-based QoS scheme we study in this paper does not mandate any buffer for traffic isolation, but nevertheless can take advantage of FDLs to improve QoS. This makes the proposed QoS scheme ...

A multihop wireless ad hoc network consists of a number of nodes that form a dynamic topology with ad hoc wireless links among neighboring nodes. These nodes are typically limited in resources such as bandwidth, computation power, memory, and battery. Quality of Service (QoS) is usually defined as a set of service requirements that need to be met by the network while transporting a packet strea...

In this era of Cloud Computing and Service Architecture, it is expected that web services will proliferate the current market and business will expose their web service’s as B2B, C2B, E2E and C2C service componets, many web services offer the similar services, and the clients application will demand more value added services and informative services rather than those offered by single entity ,o...

The main interconnecting device of today’s Internet the router, forwards IP packets without any true Quality of Service (QoS) considerations. This paper discusses a new approach for routing IP packets, which provides a basic QoS characteristic. It is shown that, by fine-tuning the parameters of a multi-port router, service discrimination can be achieved, according to the priority value set for ...

Quality of Service (Qos) plays a key role in web services. In an open and volatile environment, services may not deliver the Qos they declared. Hence, it is important to provide a Qos assessment model to select the most appropriate service for the user. Although many researches have been done to develop models and techniques to assist users in Qos assessment, most of them ignore various Qos req...