The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Advances in mobile technologies have led to the use of mobile devices in telemedicine. Examples include smartphones for capturing microscopic images from glass slides for remote telepathology and in teledermatology consultations. As use of smartphones become even more pervasive in developing countries where expert medical consultation is greatly needed, telemedicine, such as telepathology and telemicroscopy...
This paper presents results of a survey that explored the challenges low-income mobile users of Dhaka, Bangladesh (N = 131) face in mobile text entry. Results revealed that all users use the Bengali language at some capacity to compose text, yet many (are forced to) write with the Roman alphabet. Both feature phone and smartphone users feel that the existing text entry techniques are difficult to...
The proliferation of mobiles devices, such as laptops, tablets and smartphones, has led a number of educational networks to define Bring Your Own Device (BYOD) policies that allow students and teachers to bring their own devices to school and use them for educational and learning purposes. This paper presents a case study for the design of an effective and secure BYOD policy for the Greek School Network,...
Despite the advancements made towards learning such as technological innovations in the classroom and access to learning in general, there are significant challenges that remain especially the modes of delivery of quality education apart from the traditional classroom teaching and learning. In the endeavour to discover feasible solutions for these challenges, much trust has been put in new data and...
In this paper we report a technology integration experience within the Basic Education, from the use of mobile devices. The proposed environment is based on open digital learning content that is accessed via mobile devices and complemented by the use of remote experiments. The integration of mobile devices, virtual learning environment for the provision of educational materials and physical experiments...
In this work, we present a brief report on a pilot project based on the concepts of Mobile Remote Experimentation (MRE). The project aims to provide an environment and a model using open source tools that can be replicated, since these are likely to re-use and have low cost, essential factors when it comes to public education, that allows students to perform laboratory practices remotely via mobile...
The recent arrival of technological devices such as smart phones or tablets has had an enormous impact on the whole society. The young generation cannot imagine their living without them anymore. All these changes undoubtedly are reflected in all spheres of human activities including learning. Therefore the purpose of this article is to discuss the concept of m-learning, the most common mobile devices...
Information-Centric Networking (ICN) has a great potential to better support the content distribution over the future Internet. Meanwhile, users with mobile devices will also access ICN, introducing a new challenge to ICN providers to handle such mobile content requests. In this paper, a mobility and popularity-based caching strategy is proposed to increase the cache hit rate through WiFi while people...
In rural Africa, where land-based Internet connectivity is a huge problem due to a lack of infrastructure, wireless Internet connectivity and the adoption of mobile devices are a huge success. However, when it comes to mobile payments, Africa still has a long way to go. The biggest concerns with mobile payment applications are a lack of readily available banks, vendors and other shops that can accept...
Nowadays most of people have smartphones which can run complex application. Some kinds of experiments need several hours to finish. Using recent mobiles capabilities, anyone can monitor instruments and equipment efficiently from anywhere. Hence, alert services can prevent users from any incidence on supervised instruments and experiments. In this paper a new monitoring mechanism is proposed for the...
Improving energy efficiency of mobile devices is one of the main challenges to extend the battery life. The Wireless Network Interface Card (WNIC) or 3G is usually considered as primary source of energy consumption. To reduce the energy consumption, different proxying schemes have been proposed in literature mostly focusing on increasing WNIC idle periods through traffic shaping, reducing number of...
The present paper proposes a new approach towards filtering and processing the ever growing quantity of data published from mobile devices before it even reaches the Internet. We tackle this issue by circumscribing data to the zone where it is published (geocentricity) and allowing mobile device owners to republish the data they deem relevant (syndication). Results we obtained through simulation show...
This paper proposes the learning object development for teaching the new Portuguese language spelling, through the use of mobile devices. The development work started with the analysis of the literature, continuing with the study of technology, the choice of a process for the development and ending with the presentation of prototype.
This document provides detail on the implementation of a location awareness system which gives the user's current location, sends this location using SMS (Short Message Service) plus sharing location with friends and family and view them on Google maps. Users can also take benefit of this application in emergency situations by using emergency feature of this application. To get the location coordinates,...
Mobile IPv6 has been developed for quite a few years now, but it has yet to bring its constant connectivity and global reachability benefits to mobile devices in real world scenarios, mainly due to lack of trouble-free and secure network access and data transmission for devices as they roam. In this paper we propose a Unified Architecture that combines the strengths of Mobile IPv6 and AAA services...
We study how much energy can be saved by reshaping audio streaming traffic before receiving at the mobile devices. The rationale is the following: Mobile network interfaces (WLAN and 3G) are in active mode when they transmit or receive data, otherwise they are in idle/sleep mode. To save energy, minimum possible time should be spent in active mode and maximum in idle/sleep mode. It is well known that...
The growing popularity of mobile internet services, characterized by heavy network transmission, intensive computation and an always-on display, poses a great challenge to the battery lifetime of mobile devices. To manage the power consumption in an efficient way, it is essential to understand how the power is consumed at the system level and to be able to estimate the power consumption during runtime...
Mobile devices people carry in their pockets every day can use various means to connect to data services all around the Internet, e.g., 2G, 3G and WLAN. This has been an important development towards an easily accessible and always-on the Internet. While radio connectivity, bits rates in particular, has developed tremendously during the recent years, battery technology and electronics has not. Thus,...
This paper presents a method for supporting wireless media streaming using a cache that is distributed across the mobile devices in the network. The performance of this scheme is compared to traditional institutional server (IS) caching on a network with a bandwidth constrained wireless backhaul. In addition to traditional caching hit ratio metrics, the paper studies how caching affects the call drop...
Multimedia streaming applications have disruptively occupied bandwidth in wire line Internet, yet today's fledging mobile media streaming still poses many challenges in efficient content distribution due to the form of mobile devices. At the same time, cloud computing is gaining power as a promising technology to transform IT industry and many eminent enterprises are developing their own cloud infrastructures...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.