Mobile telephony

About: Mobile telephony is a research topic. Over the lifetime, 38008 publications have been published within this topic receiving 553646 citations.

Personal safety mobile notification system

Abstract: Described embodiments provide a system for alerting emergency responders to the existence of an emergency situation. The system includes multiple mobile devices in communication with a mobile communications network. Each mobile device includes an encapsulator for capturing encapsulation data from one or more data sensors of the mobile device. Each mobile device can be placed into an alert mode by a user of the mobile device. An emergency database in communication with the mobile communications network and one or more emergency response dispatchers receives, from one or more mobile devices in the alert mode, the encapsulation data, in substantially real-time. The emergency database sends an emergency alert notification to one or more alert groups associated with the users of each mobile devices in alert mode. Each mobile device sends an emergency alert notification to one or more additional mobile devices in a predetermined physical proximity to the mobile device.

A middleware for building context-aware mobile services

Abstract: Computing becomes increasingly mobile and pervasive today; these changes imply that applications and services must be aware and adapt to highly dynamic environments. Today, building context-aware mobile services is a complex and time-consuming task. We present a service-oriented context-aware middleware (SOCAM) architecture for the building and rapid prototyping of context-aware mobile services. We propose an ontology-based approach to model various contexts. Our context model supports semantic representation, context reasoning and context knowledge sharing. We take a service-oriented approach to build our middleware which supports tasks including acquiring, discovering, interpreting, accessing various contexts and interoperability between different context-aware systems.

Optimal Cloudlet Placement and User to Cloudlet Allocation in Wireless Metropolitan Area Networks

Abstract: Mobile applications are becoming increasingly computation-intensive, while the computing capability of portable mobile devices is limited. A powerful way to reduce the completion time of an application in a mobile device is to offload its tasks to nearby cloudlets, which consist of clusters of computers. Although there is a significant body of research in mobile cloudlet offloading technology, there has been very little attention paid to how cloudlets should be placed in a given network to optimize mobile application performance. In this paper we study cloudlet placement and mobile user allocation to the cloudlets in a wireless metropolitan area network (WMAN). We devise an algorithm for the problem, which enables the placement of the cloudlets at user dense regions of the WMAN, and assigns mobile users to the placed cloudlets while balancing their workload. We also conduct experiments through simulation. The simulation results indicate that the performance of the proposed algorithm is very promising.

Managing Sponsored Content Based on Usage History

Abstract: Improved search capabilities are disclosed for mobile communications devices such as cell phones, as well as improved techniques for delivering sponsored content in a mobile communication environment.