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A challenge in the convergence of heterogeneous networks is how to combine the ubiquitous resources and provide the diversified individual services. By this, the vision of adaptive and context-aware service provision becomes possible and offers new opportunities for pervasive computing. In this paper, we describe an approach that addresses the convergence of wireless personal area and wide area networks...
Wi-Fi hotspots deployed by domestic networks are an attractive approach to foster ubiquitous Internet access for mobile computers. However, it raises several security issues, since the owners of such hotspots cannot be trusted to be honest; therefore, visitors should consider them as potential Man-in-the-Middle attackers. On the other hand, the owners of such hotspots should not be legally accounted...
Proximity aware mobile service is a wireless application for mobile users to interact with services offered by service providers present in the user's environment. Many issues are still prevalent in this area which includes context modeling, sensors integration, proximity resolution and service management. One important aspect in service management is congestion control which plays a key part in providing...
Tagging technologies like barcode and RFID have made a revolution in our lives. These technologies when combined with mobile technology can result in many potential applications. These applications can range from simple object identification applications where the user scans a tag of a certain object and then get information about that object, to complex applications where tags are used as a mean...
Social networking service for mobile devices is presented and evaluated. The operating principle of the service is inspired by human-like cumulative gossiping. The usage of the service is browser based and implementation utilises standard ad hoc communication between smartphones. The cumulative gossiping protocol is built on the service level and on top of the existing ad hoc communication method...
In the ever-changing pervasive computing paradigm, applications, especially those running on resource-scarce mobile devices, have to adapt to the runtime environment as the users are roaming around. Various adaptation techniques, relying on dynamic composition of components, have been proposed by a number of researchers. Nevertheless, most existing approaches only support component selection based...
Mobile learning is transforming the way of tradition education. But most of e-learning system and contents are not suitable for mobile device. In order to provide suitable mobile learning services, the approach for self-adaptation is proposed in this paper. Firstly, the formal definitions of context and its influence on learning service, including NCxt, side S, weighing Q and adaptation coefficient...
While mobile nodes (MNs) undergo handovers across inter-wireless access networks, their contexts must be propagated for seamless re-establishment of on-going application sessions, including IP header compression, secure mobile IP, authentication, authorization, and accounting services, to name a few. Routing contexts via an overlay network either on-demand or based on prediction of an MNs' mobility,...
Accounting is a key task in commercial networks. With the increasing number of IP-based services and mobility support, accounting needs to evolve towards an integrated, service-oriented accounting approach in a mobile environment. Therefore, this dissertation digest paper presents the Service-oriented Tailored Accounting Configuration (STACO) architecture that enables a service-oriented accounting...
This paper is focused in a mobile ad hoc network, where, the nodes can be in/out of it at any time. Furthermore, the interaction of processes running on different nodes result in the creation of new tasks, named as coordinated tasks. The execution of these new tasks requires the on-line reconfiguration of the nodes. Such reconfiguration involves the scheduling of new processes. In this work, this...
Next generation network on the high speed train is aimed to achieve high mobility, broadband and large data rates as required. However, the wireless signal has been proved instable due to high doppler shift, poor weather conditions and various geography environment. In this context, the e-business on the high speed train has to face a few e-business quality problems for wavy data rates and transmission...
Mobile search is becoming increasingly important for mobile users as mobile devices are more widely used. Mobile search differs from standard PC-based Web search in a number of ways: (1) the user interfaces and I/O are limited by screen real estate and tiny key pads are tiny, (2) limited bandwidth and costly connection time, (3) increased local search due to mobility. These limitations result in more...
In this paper we introduce a novel scenario for environmental sensing based on the combination of simple and cheap RFID-based sensors and mobile devices like mobile phones with integrated RFID readers. We envision a system that exploits the availability of these devices to cooperatively read sensors installed in the environment, and transmit the data to a server infrastructure. To achieve quality...
Advancements in wireless technologies and mobile networks are increasing the demands for novel mobile services beyond voice and text-messaging applications. However, discovering such services from any device is still a major challenge. This can be considered from two perspectives: the variety of mobile devices available and the lack of service descriptions. In order to address these issues, in this...
Mobile application developers and content providers usually need to develop mobile applications with concerns for mobility for specific wireless networks and device platforms which are used by network carriers. In order to provide standard mobile applications with interoperability and mobility support, in this paper we propose a comprehensive mobile application framework to support interoperability...
We describe a framework for wireless sensor network (WSN) based mobile mashup applications. The framework consists of four functional components: WSN, mobile gateway, context management platform, and mashup server. The WSN deployed in the application domain senses the physical phenomena and the human-environment interaction and expresses them in sensor readings. The mobile phone is used as the gateway...
The proliferation of mobile computing devices and local-area wireless networks has fostered a growing interest in location-aware systems and services. We consider location as prime form of context information. The developed framework joins the concepts of location and user tracking as an extension for a new type of mobile information systems. The framework uses a WiFi network infrastructure to let...
BeTelGeuse is an extensible data collection platform for mobile devices, which also automatically infers higher level context from sensor data. In this article, the authors introduce BeTelGeuse's architecture and current features, and evaluate its impact on mobile phone performance.
Emerging rich wireless networking modalities facilitate the development of new intelligent, innovative services on smart phones. The authors propose a ubiquitous phone (UbiPhone) system that demonstrates innovative context-aware human-centric phone services, which could become available on smart phones. UbiPhone's features include UbiCall, AnyCall, and an emergency contact service.
Evolving device capabilities and network technologies make the seamless combination of personal area and wide area networks capable and desirable to exploit advantages of each of the environments. By this, the vision of adaptive and context-aware service provision becomes possible and offers new opportunities for pervasive computing. In this paper, we describe an approach that addresses the convergence...
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