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Most mobile devices are now Bluetooth-enabled. This wireless technology makes it possible to transfer files or stream contents between pieces of equipment. The possibly many devices that are in reach of each other and thus connected constitute a Personal Area Network (PAN). The problem remains that because of radio range setting up such connections is only possible for devices in a limited area. This...
Nowadays, Short Message Service (SMS) still represents the most used mobile messaging service. SMS messages are used in many different application fields, even in cases where security features, such as authentication and confidentiality between the communicators, must be ensured. Unfortunately, the SMS technology does not provide a built-in support for any security feature. This work presents SEESMS...
Security-by-Contract (S??C) is a paradigm providing security assurances for mobile applications. In this work, we present an extension of S??C enriched with an automatic trust management infrastructure. Indeed, we enhance the already existing architecture by adding new modules and configurations for contracts managing. At deploy-time, our system decides the run-time configuration depending on the...
Common car navigation systems only provide routes within the road network. Dirt roads are out of the scope of these widespread systems. In this paper we present Woodtracker, an approach to provide off-road navigation for the timber industry of the federal state of Brandenburg. The basic principle of Woodtracker is that users of the system are producers as well as consumers of navigation information:...
In order to meet the greater than ever before integration and consolidation needs, enterprises are migrating towards SOA-based models. Besides, driven by the dissemination of more refined mobile devices in the enterprise, and the rapid growth of wireless networks based on IEEE 802.11 WiFi Standards, mobile applications have been increasingly used in mission-critical business applications. The SOA-based...
Technological advances in wireless networks and mobile devices are driving towards a new concept of grid computing, in which mobile users play an active role. For this reason, classical wired grid infrastructures are being extended in order to provide facilities which enable mobile users to exploit services available in the environment. Since grid computing borrows such facilities from pervasive computing,...
This paper is to present a new novel architecture to provide smart and easy control and sharing between various CE and IT devices. The proposed architecture is based on RF4CE which has a reliable standard enhances the IEEE 802.15.4 standard by providing a simple networking layer and standard application profiles that can be used to create a multi-vendor interoperable solution for use within the home...
In 2004, Bresson et al. proposed an authentication and group key agreement protocol for unbalanced wireless networks. Tseng recently proposed a novel secure protocol to improve Bresson et al.'s protocol. However, both protocols are insecure against the so-called impersonation attacks. This paper proposes a mutual authenticated group key agreement protocol based on RSA, discrete logarithms (DL) and...
In this paper, we consider the behavior of a wireless sensor network for TwoRayGround and Shadowing radio models for the case of mobile event. By means of simulations, we analyse the performance of AODV protocol. In the previous work, we considered that the event node is stationary in the observation field. In this work, we want to investigate how the sensor network performs in the case when the event...
This paper presents a self-guided tour system that allows a visitor to instantly share his/her notes or remarks about exhibits with others through the Internet. The note/remark not only can be stored with the exhibit information to be accessed by other visitors, but also can be broadcasted through microblogging in a timely manner. This provides an interaction mechanism for the visitor to feedback...
Various haptic displays are becoming available for implementing a new kind of human computer interaction (HCI) method. Among many types and models, touch panel displays have been used in wide variety of applications and are proven to be a useful interface infrastructure. In spite of their popularity, there are some weak points. The most serious drawback is their hardness to operate especially for...
In recent years, RFID (radio-frequency identification) system has widely used owing to its convenient and efficiency in many applications. In this paper, we propose a novel scheme that the market membership can use the mobile reader to query products information and make a secure transaction through cash register. There also can use the accumulated digital coupon to redeem prizes with the server....
Current sensor network technology for detection and tracking are focused solely in terms of static networks and suffers from device specific inadequacies such as lack of coverage, power and fault tolerance. Failing nodes result in coverage loss or breakage in connectivity and hence there is a pressing need for a robust system. In this work a unique sensor network is fielded that uses multiple frequencies...
This paper explains how a user-generated folksonomy can be aligned with, and used to expand an ontology. The ontology can in turn be used as a backbone for, and visualized through, an interactive tourist city tour on a mobile phone. Furthermore, it suggest that the city tour can be dynamically changed based upon user input through a folksonomy, which has been aligned with the ontology.
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