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Introducing SCA programming model in transaction middleware has universal significance, it overcomes the difficulties to reuse the core software assets which running on transaction middleware and separates the business logic and the technology implementation of the application in transaction middleware system. This paper presents a transaction middleware model for SCA programming based on the Tuscany...
J2EE based SIP application server is a scalable middleware for containing and managing SIP application. In this paper, a kind of SIP accelerator named SIP offload engine (SOE) is presented to improve server performance through offloading SIP message parsing, SIP transaction processing, security and transport layer connections management. The SIP application can be deployed on SOE enabled SIP application...
More and more, the use of real-time distribution middlewares programmed with high-level languages like Java is becoming of interest for industrial systems because this type of infrastructures reduce development efforts required to both design and maintain complex networked applications. In that way towards having better development tools, this paper deals with the very specific issue of the asynchronism...
In this paper a distributed object-oriented framework (DOBS, Distributed Object Based Services) for home service design is presented. This framework eases the development of advanced services able to run in a variety of devices ranging from tiny wireless sensors to powerful multimedia servers. Special emphasis will be made on DOBS main features, its core components, the offered common services and...
As a new generation of Internet communication technologies, Web Services are becoming an increasingly popular middleware technology used to integrate heterogeneous building automation system (BAS) on the Internet. Ajax technology, with which web applications can retrieve data from the server asynchronously in the background without interfering with the display and behavior of the existing page, has...
ARC and gLite are two of the leading production-ready Grid middleware solutions being used by thousands of researchers every day. Even though the middlewares leverage the same technologies, there are substantial architectural and implementation divergences. Today, users face difficulties trying to cross the boundaries of the two systems. The gLite clients have so far not been capable of accessing...
Many scientific applications produce a lot of data when running on large-scale supercomputers. Sometimes this data can stay on the local storages but often it should be transferred to other resources for post processing or to be used for new computations. Therefore it is essential to have efficient file transfer mechanisms that transfer data. Scientists increasingly use Grid middleware like UNICORE...
Grid systems provide a standard platform to share resources, such as computing facilities and backup services, between research communities and commercial organizations. Nowadays there are plenty of grids among different institutions, and many of them are probably heterogeneous to others because they are constructed by different types of middleware. Enabling all these grids to work as a single grid...
This paper describes performance comparison of load balancing control through code migration in distributed desktop computing grids. A prototype of the middleware which migrates object code for computing is implemented, and the trade-off of code migration was observed. Based on the prototype experiment, several algorithms for location policy in desktop computing grids were examined on simulations,...
Non determinism can lead to data inconsistency state in actively replicated environment. This defeats the purpose of replication as a fault-tolerance strategy. We proposed an efficient method which ensures determinism among the replicas in fault tolerance middleware applications. This method exploits the technique of statically analysing the application source code of client, and finds the variables...
Within a smart home environment the information processing is supposed to be thoroughly integrated into everyday objects. This introduces the need to keep track of the everyday objects and their state changes produced based on the userpsilas interaction with them. Such information is useful in recognizing the userpsilas activities, situations, etc. In this paper we present a ZigBee communication protocol...
Distributed computing plays a pivotal role in the advancement of technology and service. It shares all resources that are distributed over various nodes of a network, which makes effective computing easier and smarter. But this has also raised some problems in consistency of objects stored at various nodes in the network. These problems can be sorted out by using various protocols that are specifically...
Traditionally, system and network management software is tightly tied with the managed IT resources through their specific manageability interfaces. Toloose this tie, applying Web services technology in system and net work manage field is a reasonable way.In this paper, we propose a novel Web services-based distributed system and network management middleware model: WSDSNM3. This model utilizes Web...
Middleware for the Pervasive Computing pays much attention to making the numerous computing entities cooperate to provide services for people. It needs to meet the demand of multiplatform, limited resources and the mobile computing. In the paper, a embedded middleware, emORB, is presented, and its architecture and design is discussed in detail including the reduction of ORB, the design of PDL, the...
Due to their general applicability, standard middleware approaches, especially in connection with serial communication systems, tend to be too sophisticated for wireless sensor network (WSN). This paper describes the characteristics and the application of a modular communication infrastructure for WSN. The core of the communication infrastructure is the serial bus wireless sensor network (SB-WSN)...
This paper describes the main challenges of implementing a multimedia on demand system (TetraMoD) for emergency scenarios. The objective of this system is to offer a complete solution for providing multimedia services (video on demand and reliability file transfer) to a rescue team in an emergency situation. This multimedia system will improve the traditional emergency communications. We propose to...
Increasing heterogeneity of networks, services and applications emphasizes the need for middleware as an essential part of the information technology infrastructure. To implement novel 3G and beyond 3G mobile applications and services, the light-weight middleware utilizing application supernetworking- and hybrid peer-to-peer (P2P) - client/server concepts can be considered. Application supernetworking...
Today' s broad coverage of mobile networks allows for large-scale environmental monitoring systems capable of warning citizens prior to an incident. In this paper, we present an embedded prototype system which collects environmental data and distributes them either using Web service protocols or using the JXTA Peer-to-Peer protocol stack. The complete system was implemented based on both protocol...
Message oriented middleware (MOM) systems have been using publish/subscribe mechanism for asynchronous messaging among backend servers. Latest developments in modern Web-based clients have extended the use of publish/subscribe mechanism from backend servers to front-end clients. Some of the recently proposed protocols, like Bayeux, use topic-based publish/subscribe mechanism to exchange messages between...
The information service is an important component of any Grid middleware as it helps users to find resources suitable for the execution of their applications. Traditional approaches based on data bases that have been designed for Grids of moderate size do not fit the requirements of wide-area large scale Grids composed of dozens of thousands highly dynamic nodes. In this paper, we propose a fully...
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