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.
Cyber foraging is a pervasive computing technique where small, mobile devices offload resource intensive work to stronger, nearby surrogate computers in order to preserve energy and achieve better performance. The problem with relying only on local resources is, that the availability of such resources may be scarce in many environments. In this paper we therefore argue that a third tier should be...
In this paper, we propose the Network Service Platform (NSP), which is a framework to develop network services using real-world data efficiently, and implement its application. We implemented a prototype system based on NSP using GPS data and image data obtained from cell phones. This service integrates internet services with ubiquitous services by using the Robot Service Network Protocol (RSNP),...
Cognitive Radio (CR) is a key technology for improving the utilization level of the overall radio spectrum in wireless communications. It is able to sense and change its transmission and reception parameters adaptively according to spectrum availability in different spectrum channels. The Cognition Cycle (CC) is a state machine that is embodied in each CR host that defines the mechanisms related to...
LifeMap, a smartphone-based context provider operating in real time, fuses accelerometer, digital compass, Wi-Fi, and GPS to track and automatically identify points of interest with room-level accuracy.
Pervasive computing is a rapidly developing area of Information and Communications Technology (ICT). It refers to the increasing integration of ICT into people's lives and environments, made possible by the convergence of advanced electronic - and particularly, wireless - technologies and the Internet. Wireless technologies are expected to connect various devices in many potential applications, from...
In today's Digital Libraries, mobile devices belong to readers often move from one network to the other frequently. Communications with a fixed support infrastructure may not be suitable for original library applications. Ubiquitous computing environments need to be deployed for new library era. This paper discusses the role of Mobile ad hoc networks (MANET) in the Library. A case study is discussed...
Mobile Multimedia Broadcasting (MMB) is a new hotspot of wireless application and Cloud computing is a shared services architecture based method. With the analysis on advantages and disadvantages of characteristics in traditional service modes of MMB, the method of virtual computing and distributed processing of Cloud computing is introduced to promote the integration of MMB industrial chain. The...
Ubiquitous and accurate indoor positioning represents a key capability of an infrastructure that enables indoor location-based services. At the same time, such positioning has yet to be achieved. Much research uses commercial, off-the-shelf 802.11 (Wi-Fi) hardware for indoor positioning. In particular, the dominant fingerprinting technique uses a database (called a radio map) of manually collected...
Mobile radio networks of the IMT-Advanced systems family promise ubiquitous broadband access and high area coverage, with rates of several 100 MBit/s. They claim to guarantee QoS support in terms of low delay and guaranteed throughput. However, with the availability of flat rate plans and bandwidth-hungry applications of future mobile devices the systems are facing a hard challenge in satisfying all...
The emerging IEEE 802.16e Broadband Wireless Access (BWA) network is one of the most promising solutions to provide ubiquitous wireless access with high data rates, high mobility, and wide coverage. In the paper we develop a novel Connection Admission Control (CAC) algorithm for IEEE 802.16e mobile BWA networks to simultaneously improve the utilization efficiency of network resources and guarantee...
Digital evidence is proving increasingly pivotal in criminal investigations whether it is an arrest for a minor offence or a more serious activity. As people rely on mobile phones and their many functions, the digital trail of evidence continues to grow. The forensic examination of mobile phones is a relatively new discipline and research activity into the forensic analysis of these types of phones,...
The wireless ubiquitous network and various communication services are expected to be realized. The wireless ubiquitous network is defined as the converged network to integrate the mobile network with the fixed IP based network. First, the concept of wireless ubiquitous network architecture is shown which is based on IMS standardized by 3GPP. Next, Parlay is described as the solution of Open API approach...
Rapidly growing demand for ubiquitous wireless access is presenting significant challenges to the scalability of the existing mobile wide area (WA) network infrastructure. This is increasing the importance of wireless local area (LA) access points (AP) and base stations (BS) residing in indoor locations. Uncertainty exists over who will control this, potentially very valuable part of the mobile service...
The following topics are dealt with: wireless sensor network; ubiquitous computing; trustworthy computing; ubiquitous data management; embedded wireless communication; pervasive services; cyber-physical system; mobile computing; and mobile network.
Today's mobile devices support many wireless technologies to achieve ubiquitous connectivity. Economic and energy constraints, however, are driving the industry to implement multiple technologies into a single radio. This system-on-a-chip architecture leads to competition among networks when devices toggle across different technologies to communicate with multiple networks. In this paper, we study...
The following topics are dealt with: wireless pervasive computing; cooperative communication; physical communication; sensor network; cognitive radio network; ultrawideband communication; vehicle ad hoc network; mobile ad hoc network; wireless personal area network; localization technique; orthogonal frequency-division multiplexing; wireless multimedia service; wireless network; network coding; next...
Care-dependent people need assistance to carry out the normal daily activities. A situation that many of these people have to face up is going to the doctor in order to obtain the needed drugs' prescriptions. This work presents a proposal to enable patients getting prescriptions from home, avoiding going to the health-care center. With the aim of achieving a natural user interaction, something necessary...
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.