The paper addresses the issue of providing quality of service guarantees in the Internet. After a brief discussion of Internet traac characteristics, we consider the possibility of performing multiplexing with predictable performance for stream and elastic traac using open loop and closed loop control, respectively. Quality of service depends essentially on providing suucient capacity to handle...

QoS-specification, QoS-enabled trading, distributed object systems, object component specification, object interoperability, quality of service, object-oriented programming Computing systems deliver their functionality at a certain level of performance, reliability, and security. We refer to such nonfunctional aspects as quality-of-service (QoS) aspects. Delivering a satisfactory level of QoS i...

The wireless Ad-Hoc network is infrastructure less with nodes in the network area are randomly moving and communicating between nodes while roaming. In this paper we propose the TDMA Based Energy Efficient Quality Of Service Routing Protocol (EAQOSRP). The network scenario is established by considering 1000 X 1000 area and displaying randomly moving nodes using TCL. The resource reservation is ...

Kurzfassung Quality-of-Service-Aware Data Stream Processing Data stream processing in the industrial as well as in the academic field has gained more and more importance during the last years. Consider the monitoring of industrial processes as an example. There, sensors are mounted to gather lots of data within a short time range. Storing and post-processing these data may occasionally be usele...

Service engineering and service-oriented architecture as an integration and platform technology is a recent approach to software systems integration. Quality aspects ranging from interoperability to maintainability to performance are of central importance for the integration of heterogeneous, distributed service-based systems. Architecture models can substantially influence quality attributes o...

Internet has evolved into an indispensable service delivery infrastructure. Various application services such as multimedia services and web services have been widely deployed and used. However, due to the problems pertaining to scalability, reliability, and manageability, traditional monolithic service provision approach has become inadequate. Thus, we propose a compositional approach for prov...

In a wide variety of embedded control applications, it is often the energy resources that form the fundamental limits on the system, not the system’s computing capacity. Various techniques have been developed to improve energy efficiency in hardware, such as Dynamic Voltage Scaling (DVS), effectively extending the battery life of these systems. However, a comprehensive mechanism of task adaptat...

This work describes an approach to facilitate to use of contextual information to improve the quality of service in a mobile ambient environment. The approach advocated here defines two levels of applications: a simple stimuliresponse based system using the Context-Middleware, and a more complex and adaptive version that utilises a multi-agent environment to supply information and context to mo...

This paper addresses quality of service (QoS)-aware multi-tier location managements for integrated WLAN/UMTS networks. Single registration (SR) and multiple registration (MR) schemes are introduced and improved to support both voice and data services efficiently. The performance of the improved SR and MR schemes is analyzed based on mobility and traffic characteristics of mobile users. The resu...