We describe the design of an application platform able to run distributed real-time and multimedia applications alongside conventional UNIX programs. The platform is embedded in a micro-kernel/ PC environment and supported by an ATM based, QoS driven communications stack. We focus in particular on resource management aspects of the design and deal with CPU scheduling, network resource managemen...

-Increasing progress of multimedia communication has increased the significant approaches to deal with the problems like unstable channel conditions, limited resources and mobility of infrastructure less wireless networks. A cross layer design is the effective approach to allow the direct communication between protocols towards non-adjacent layers or sharing variables between layers and utilizi...

Web Services are the interoperable and loosely coupled components for simplifying business processes over the web and are popular model of distributed computing now a days. There are a very few datasets available regarding Quality of Service (QoS) for web services since web services datasets are difficult to create. The reason being that it requires more effort to collect service information fr...

We propose a lightweight traffic admission control scheme based on on-line monitoring which ensures multimedia services quality both intra-domain and end-to-end. The AC strategy is distributed, service-oriented and allows to control QoS and SLS without adding complexity to the network core. For each service class, AC decisions are driven by rate-based SLS control rules and QoS parameters contro...

Interactive Video on Demand with Instantaneous Access (IVoD-i) can offer users with VCR like functions by sending requests to video servers. Earlier work has shown that the Available Bit Rate Service of ATM networks can be effectively used for interactive video on demand. However, non optimal values of the connection setup parameters can affect the Quality of Service (QoS) at the user. This is ...

Quality of Service (QoS) once defined in a contract between two parties may change during the life-cycle of Service-Based Applications (SBAs). Changes could be due to system failures or evolution of quality requirements from the involved parties. Therefore, Web Services need to be able to adapt dynamically to respond to such changes. Adaptation and evolution of services are playing an important...

This paper proposes a methodology for the development of multimedia systems. It is based on a time-sensitive, reflective actor framework that centers on lightweight actors, nonoverkilling concurrency and customizable constraint-directed scheduling. A multimedia system can be visualized as a collection of media actors, i.e., autonomous, concurrent and computational processing entities, involved ...

The rapid growth of embedded systems urgently requires methods of improving the development process for these systems. Component-based development (CBD) techniques have been widely studied to enhance the productivity of developing complex applications. These techniques can benefit the software development process for embedded systems as well as other application domains. However, applying CBD t...

Long Propagation Delay is the major drawback in underwater sensor networks. In this paper, we use JSL algorithm, which synchronizes time and localization of sensor nodes, and ACO algorithm to find optimal path to forward packets from anchor node to base station using object node. Furthermore, by combining both the algorithms, we can reduce the propagation delays. Some QoS Parameters are analyze...

In this paper we provide an extensive analysis of voice service in wireless IP networks. Voice traffic is serviced with priority over the rest of the traffic. Hence, we concentrate on the voice traffic in the analysis. We model the packetized voice traffic with Markov Modulated Poisson Process (MMPP), and we propose an analytical framework for its analysis in wireless networks. Also, we created...