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This paper introduces the design and implementation of a middleware for mobile devices that can interact each other at a close range. In a case that the users of some application service locate within a short distance, it is inefficient for users to communicate with others via a remote server on the network. Communicating between users directly is much better and faster than being relayed by a remote...
This paper presents a mobile application called MobiCrop that aids crop farmers in the application of pesticides. The requirement of the application is to have a monitoring station where updates are constantly being pushed to the farmers who are geographically dispersed. This requirement creates the need to deploy a mobile distributed architecture rather than a standalone app that has become the standard...
Mobile technology is increasingly being adopted in the agricultural space as a measure to assist farmers in decision. In this regard, the MobiCrop project was initiated by the researchers from the College of Agriculture at the University of Saskatchewan, Canada, and the Multi-Agent Distributed Mobile and Ubiquitous Computing (MADMUC) Lab. The aim of the project is to enable farmers to have mobile...
The combined effect of Moore's law and the failure of Den nard scaling have led to multi-core mobile devices with immense computation capabilities. The biggest limitation of the computation capability for any mobile device is its battery. Mobile cloud computing is used to offload compute intensive tasks that affect a mobile device's battery. Mobile ad-hoc computing can be used as an alternative to...
To provide effective mobile services in spite of network disruption, context aware middleware services on mobile devices and application servers can provide services for continuation of applications, by managing mobile services, network connection, limited resources, and context information. In this paper, we propose context aware middleware services for disconnection tolerant mobile application services...
This paper presents a mobile middleware that solves interoperability problems occurred in VoIP protocols (SIP, H.323, Jingle and their different vendor implementations) and uses distributed shared objects to overcome scarce resource problem of mobile devices.
The constant advent of powerful mobile devices has raised the potential of building novel context-aware applications. These applications let the users enjoy a better experience by sensing their context and automating tasks that would otherwise require significant user attention. This paper presents two context-aware applications, built on top of the MUSIC middleware's context management framework...
Presence systems are widely used today to get information of user availability and their willingness to communicate. As presence and Unified Communications (UC) services are viewed as productivity enhancements within enterprises, the need to connect these services across enterprise WANs and MANs becomes more important. Adding to the availability to communicate is the growing use of mobile devices...
Two significant but independent trends in recent years are the popularity of social networking applications and the adoption of mobile devices, notably smart phones. The current generation of smart phones are pocket computers that, compared to their predecessors, are relatively well resourced. Existing support for social networking tends to take the form of Web-based applications that are accessed...
Although mobile devices are rich sources of context information, the distribution of context in mobile environments is often hindered by the limited battery life, and wireless connections with low bandwidth. In this paper, we present two different implementations that enable context distribution in mobile environments. The first solution relies on a presence service architecture and publish-subscribe...
Multimedia information systems have been developed into service-ware. With the paradigms of web services, service oriented architectures (SOA), and Web 2.0 widgets, multimedia has become truly ubiquitous. However, interoperability, scalability, reliability and security are arising challenges at mobile multimedia service development. This paper focuses on the analysis, design, development and evaluation...
This paper describes middleware that establishes a MANET environment with mobile devices and exchanges contents in the devices. The middleware also provides a sharing function as a common service among mobile devices.
Although the landscape of mobile devices is continuously evolving towards more powerful terminals, the limitations regarding processing power, memory capacity and speed, network connection and battery, are still present and at certain loads fail to satisfy the requirements of complex applications. Being always connected to the network offers a solution to this problem as the server infrastructure...
Content sharing and social networking are two activities that users now routinely engage in on a range of connected devices. However users have to face arcane configuration panels for setting up connectivity, heterogeneity in the human-machine interaction models, differences in devices' capabilities and a profusion of tools/services/applications to perform their tasks. Adding to this complexity is...
Cell phones are no longer merely used to make phone calls or to send short or multimedia messages. They more and more become information systems clients. Recent developments in the areas of mobile computing, wireless networks and information systems provide access to data at almost every place and anytime by using this kind of lightweight mobile device. But even though mobile clients support the Java...
The increasing user mobility and more and more powerful mobile devices changed the way services are used today, e.g., by taking the user's location into account. Indeed, service interaction models are also influenced by this development making the ad hoc composition of complementary functionalities possible. Here, particular challenges remain in the field of composing services that are hosted on different...
Mobile devices are considered to be very useful in ad-hoc and team collaborations, for example in disaster responses, where dedicated infrastructures are not available. Such collaborations normally require flexible and interoperable services while running on mobile devices and being integrated with various other services. Therefore, middleware and toolkits for developing mobile services which can...
In pervasive environments, users can potentially access a variety of services through their mobile devices. However, in order to use the new services, we need to adapt the functionality of these devices. To achieve it, we propose to load a bootstrap into them that is able to communicate with the services. However this bootstrap has to be adapted due to the diversity of services offered in the environment,...
The related technologies of radio frequency identification (RFID) applications are interested these years. The reason is the breakthroughs in semiconductor and wireless technology, so that the size of RFID devices could be reduced within a small space. Thus for different application scenarios, RFID devices could be redesigned as various forms or behaviors to adapt. The more added values provided by...
Today, mobile devices are capable of providing services instead of just being service consumers. These services deployed on mobile devices are known as MobileWeb Services (Mob-WS). In this paper, a middleware for long running Mob-WS that avoids the overheads of long durational synchronous Mob-WS in introduced. A concept and architecture of such asynchronous Mob-WS middleware is presented. Moreover,...
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