The device discovery time of Bluetooth is prohibitively long. This may significantly impact many mobile applications. In this work, we start by analyzing the frequency matching of Bluetooth, the major component of delay in its device discovery, for both versions V1.2 and V1.1 specifications. We then propose a new scheme called Dual Inquiry Scan to reduce the delay. The result is a reduction of ...

Urban intersections are the most dangerous parts of a blind or visually impaired pedestrian's travel. A prerequisite for safely crossing an intersection is entering the crosswalk in the right direction and avoiding the danger of straying outside the crosswalk. This paper presents a proof of concept system that seeks to provide such alignment information. The system consists of a standard mobile...

This chapter presents a usability evaluation method for context aware mobile applications deployed in semi-public spaces that involve collaboration among groups of users. After reviewing the prominent techniques for collecting data and evaluating mobile applications, a methodology that includes a set of combined techniques for data collection and analysis, suitable for this kind of applications...

BACKGROUND Medical education is rapidly evolving. Students enter medical school with a high level of technological literacy and an expectation for instructional variety in the curriculum. In response, many medical schools now incorporate technology-enhanced active learning and multimedia education applications. Education games, medical mobile applications, and virtual patient simulations are to...

Nowadays, many people, especially students, enjoy spending their free time with mobile devices. The main reason for this is that an intelligent device based on current information presents the desires and requirements of students. A nowadays-promising technology to overcome problems in m-learning, devices provide reliable, customized guaranteed dynamic computing environments all users. This art...

This paper describes the design of ,services to support consistency in collaborative mobile applications. The requirements for application level consistency in groupware applications are discussed and it is urgued that existing consistency services for mobile environments fail to address these requirements because they assume infrequent (write) sharing of information. We present the design of a...

When you are online, you provide information about yourself almost every step of the way. Often this information is like a puzzle with pieces that need to be connected before the full picture is revealed. Information you provide to one person or company may be combined with information you have provided to another person or company to complete the puzzle. This information can be collected throu...