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.
Light-trail is a new technique, which is generalized from the concept of light path. It possesses two major advantages; one is bandwidth sharing and the other one is efficient bandwidth utilization. While a lot of literature investigate the design of routing algorithms, however, the performance of light-trail networks relies on the efficiency of dynamic bandwidth allocation schemes. In this paper,...
In this paper, the influence of our proposed Urban Disaster Information System by moving objects is experimented and discussed. It is widely known that the network conditions between wireless node and the setup wireless LAN (Access point) is influenced by moving objects like cars, animals, and bullet train. Therefore, Disaster Information System in urban area is necessary to consider with the influences...
Various information displays are becoming available for implementing new kinds of human computer interaction (HCI) methods. Among many types and models, touch panel displays have been used in wide range of applications and are proven to be a useful infrastructure for creating intuitive HCI. In spite of their popularity, there are some weak points. The most serious drawback is their hardness to operate...
The design of an efficient collaborative multirobot framework that ensures the autonomy and the individual requirements of the involved robots is a very challenging task. This requires designing an efficient platform for inter-robot communication. P2P is a good approach to achieve this goal. P2P aims at making the communication ubiquitous thereby crossing the communication boundary and has many attractive...
Recently there has been an increasing interest in exploring P2P technologies for developing groupware tools to support online learning activity. Among the many features that make P2P technology an important alternative to develop online learning systems is its fully decentralized nature as well as the possibility to customize the learning environments to the needs of groups of learners. In fact, in...
The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service(QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is limited by available radio frequency spectrum. Call Admission Control (CAC) is one of the resource management functions, which regulates network access to ensure QoS provisioning...
Cognitive wireless network is one of efficient wireless transmission methods to solve today's wireless network problems like a lack of wireless radio resource or congestion of wireless bands. However, Cognitive wireless network still has some problems to realize like efficient algorisms, control methods, and technical problems to attain efficient transmission. In this paper, the Min-Max based AHP...
Nowadays, advanced virtual reality technology realize to generate tactile sensations for user interface with haptic information, such as force feedback and tactile sensation. Haptic devices are expected to achieve new type of interaction between human and computer. We have proposed an advanced framework of image editing operations with haptic interaction. Users can utilize haptic information to edit...
In this paper, we introduce cognitive wireless network for a disaster information system based on dynamic network reconfiguration method to improve the connectivity. Our network system is consisted of multiple mobile routers based on currently available wireless LANs including IEEE802.11b,g,j,n, IEEE802.16 (WiMAX), cellular networks. Using those different standardized wireless networks, the disaster...
Increasing numbers of physical sensors are used for various purposes. Those physical sensors are usually used by their own applications. Because each application manages both of physical sensors and their sensor data exclusively, other applications cannot use the physical sensors in the different party easily. We propose a new infrastructure called Sensor-Cloud infrastructure which can manage physical...
This paper aims to find interested association rules, known as data mining technique, out of the dataset of downloading logs by focusing on the coordinated activity among downloading servers. The result of the analysis shows the association rules of the downloading servers and that of the malwares.
A basis of quality control on industrial products is to confirm that materials parts, assembly and processing and so on satisfy regulation. There are some cases depending on types of assembly processes that the result of certain process cannot be confirmed whether it satisfies regulation. For example, order to fasten some screws to fix a part is determined to guaranty accuracy to fox the part. However,...
Business continuation is very important for internal control. Disaster recovery plan is required to guarantee business continuation. Remote backup is suited for disaster recovery. However, conventional remote backup system has several issues such as communication bottleneck, security, cost and so on. In addition, it must recover the image snapshot taken at any time. In this paper, we propose a backup...
In this paper we present a parallelized particle-based volume rendering (PBVR) system to obtain super linear speedup, i.e. the speedup with N processors is greater than N, on a distributed computing system. PBVR is a technique of volume rendering which does not need any sorting therefore it is suitable for parallel execution. We implemented the parallel version by using Open CABIN middleware and measured...
In this paper, we introduce an asynchronous collaborative support System introducing access control which can provide a flexible mechanism to store the current collaborative virtual environments (CVE) space, replay the past recorded CVE space and replace the current CVE by other past CVE space. Revision Tree with hierarchical 3D structure is visualized in space and operated by users to refer the past...
It is difficult to get awareness of user's context from sensors such kind of video cameras, RFID-Tags, GPS, PC-monitoring and another ubiquitous devices. On the other hand, it is difficult to understanding what information is got in computers for user. We are in the network-age since 1995. We use PC, smart phone, iPad and other digital gadget which are connected to the Internet every time anywhere...
Nursing scheduling problem (NSP) has been verified NP-Complete. The Nursing scheduling is a dynamic process interacting with parties iteratively to reflect the revised expectations and constrained rules. It is an orchestrating process which needs not only the scheduling algorithms and shifting methodologies but also the interaction and coordination. Based on web service orchestration in the NSP domain,...
In this paper, we outline our research on automation using the ZigBee technology and the internet to control devices. Home automation has been chosen as a way to demonstrate the usage of the system and can be easily expanded to cover industrial equipments through the network in a wireless fashion. ZigBee allows multi-hops in network transmission and enables seamless communication between the server...
We have confirmed that terrestrial magnetism and acceleration sensors are useful to measure ski jumper's in run descending speed and taking-off positions using a model of ski jumping ramp. Also, we gathered required measurement by inquiring a ski jumping athlete and his coach. As this result, we confirmed following measurement: in run descending speed, jumper's style and posture at jumping point,...
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.