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The purpose of this research is to build an educational prototype for attracting high school seniors and college students to pursue university degrees. The prototype entails demonstrable hardware and software comprising of a set of communication nodes with call priorities, which are used to help educate students on future and practical implications of spectrum sharing. Two objectives are achieved...
This paper addresses whether Mobile Cloud Computing models can be used to extend the capabilities of resource constrained mobile devices to provide the illusion of infinite, elastic resources on demand. We identify five key limited resources as being CPU, memory, battery, data usage and time. Existing solutions for these limitations are explored, and we identify offloading computation and storage...
In this article, we propose a web-based system, called MoCHA display, for rich interactions between pervasive displays and users with a mobile device. Our scheme consists of a web-centric architecture, in which both the screen and the mobile device simply need to run a web browser. Our contributions are twofold. First, we develop a distributed architecture based on modern web technologies and cloud...
The paper describes architecture of a prototype networked student information delivery system. Main system functionalities include interactive access to lecture room timetables and group messaging. The system exploits modern mobile technologies to allow flexible usage scenarios. The use of open APIs of telecommunications service delivery platforms in combination with e-mail messaging provides diverse...
Handheld mobile technology can help disaster relief workers and soldiers in the field with tasks such as speech and image recognition, natural language processing, decision-making, and mission planning. However, these applications are computation-intensive, take a heavy toll on battery power, and often rely on good connectivity to networks, limiting their practical usefulness in a crisis. This paper...
M-learning is a mobile technology in learning and teaching which also another extension to the conventional learning practice specifically e-learning. Mostly, accessing of resources in e-learning is done through fixed nodes such as notebook and desktop PC which generally are restricted either by location, time or both. Through m-learning, accessing to learning resources is independent of time and...
Near Field Communication (NFC) has become widely available on smart phones. It helps users to intuitively establish communication between local devices. Accessing devices such as public terminals raises several security concerns in terms of confidentiality and trust. To overcome this issue, NFC can be used to leverage the trusted-computing protocol of remote attestation. In this paper, we propose...
In this paper we will describe an open architecture for detecting earthquakes using the built in accelerometers available in some mobile phones. Although the idea of building a network of accelerometers for this application is not new, we will take an iterative approach starting with a prototype which exhibits some core functionality. Key questions include: what level of sophistication is required...
This paper introduces the Virginia Tech Center for Wireless Telecommunications' Vehicular Public Safety Cognitive Radio (VPSCR), a vehicle-based extension to our previously fielded cognitive radio prototype for the public safety community. Specifically, the VPSCR can scan the radio spectrum over multiple public safety frequency bands, classify commonly used public safety waveforms and networks, and...
The problem of private location-based queries has been intensively researched in recent years. Several location protection algorithms exist, most of which use some form of location cloaking. However, existing work focuses on the analysis of privacy and performance, and less on the user's perspective on location privacy. We developed a prototype of the PROBE system with an emphasis on visualization...
The deployment of mobile and ubiquitous computing in smart objects introduces the concept of an Internet of things which will offer new scenarios for learning processes. This paper presents this concept in relation with some other new alternatives of spaces for learning. A basic architecture for interaction is proposed and a set of prototypes that we have developed are also explained as part of an...
In this paper, we propose a novel user interface framework for controlling appliances in smart spaces based on the natural look of UI on physical appliances. When a user selects a specific target appliance to control, the proposed architecture and procedures provide NVUI (NaturalView User Interface) on a userpsilas mobile device to maximize userpsilas a priori familiarity with the user interface....
A low-cost intelligent mobile phone-based wireless video surveillance solution using moving object recognition technology is proposed in this paper. The proposed solution can be applied not only to various security systems, but also to environmental surveillance. Firstly, the basic principle of moving object detecting is given. Limited by the memory consuming and computing capacity of a mobile phone,...
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