The Experts below are selected from a list of 17022 Experts worldwide ranked by ideXlab platform
Víctor M. R. Penichet - One of the best experts on this subject based on the ideXlab platform.
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Improving Location Awareness in indoor spaces using RFID technology
Expert Systems with Applications, 2010Co-Authors: Ricardo Tesoriero, R. Tebar, J. A. Gallud, M. D. Lozano, Víctor M. R. PenichetAbstract:Location Awareness is a key issue to improve the development of autonomous entities that are embedded into ubiquitous computing environments. GPS seems to be the best solution to develop outdoor Location systems, but the performance of these systems is not good enough to locate objects or humans within indoor environments, mainly if accuracy and precision are required. In this article we propose the use of a cheap and reliable technology as RFID to develop a passive RFID-based indoor Location system that is able to accurately locate autonomous entities, such as robots and people, within a defined surface. This system is applied to solve the robot tracking problem. We include the evaluation of the proposal by comparing our system technology performance with other alternatives built on different technologies (Wi-Fi, Bluetooth, IrDA, ultrasound, etc.). We have also performed a Location Awareness proof concept test to analyze the viability of the approach. © 2009 Elsevier Ltd. All rights reserved.
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short communication improving Location Awareness in indoor spaces using rfid technology
Expert Systems With Applications, 2010Co-Authors: Ricardo Tesoriero, R. Tebar, J. A. Gallud, Mariadolores Lozano, Víctor M. R. PenichetAbstract:Location Awareness is a key issue to improve the development of autonomous entities that are embedded into ubiquitous computing environments. GPS seems to be the best solution to develop outdoor Location systems, but the performance of these systems is not good enough to locate objects or humans within indoor environments, mainly if accuracy and precision are required. In this article we propose the use of a cheap and reliable technology as RFID to develop a passive RFID-based indoor Location system that is able to accurately locate autonomous entities, such as robots and people, within a defined surface. This system is applied to solve the robot tracking problem. We include the evaluation of the proposal by comparing our system technology performance with other alternatives built on different technologies (Wi-Fi, Bluetooth, IrDA, ultrasound, etc.). We have also performed a Location Awareness proof concept test to analyze the viability of the approach.
Massimo Zancanaro - One of the best experts on this subject based on the ideXlab platform.
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hyperaudio Location Awareness adaptivity
Human Factors in Computing Systems, 1999Co-Authors: Daniela Petrelli, Marcello Sarini, Oliviero Stock, Carlo Strapparava, Massimo ZancanaroAbstract:The HyperAudio system aims at better supporting a user while visiting a museum by combining Location Awareness and information adaptation. This mixing of information delivery and physical space proposes new challenges for an effective human-computer-environment interaction. The HyperAudio solution interprets the visitor's behavior (i.e. physical and interactive) to create on the fly object presentations on the basis of the user model, the physical context and the history of interaction.
Chankil Lee - One of the best experts on this subject based on the ideXlab platform.
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Location Awareness in 5G Networks using RSS Measurements for Public Safety Applications
IEEE Access, 2017Co-Authors: Muhammad Alee Khan, Arbab Waheed Ahmad, Nasir Saeed, Chankil LeeAbstract:One of the notable aspects of public safety applications in 5G networks is Location Awareness, which is a feature of contemporary technology that imparts details about a user‘s geographical Location to another user or application. Mobile users take their cell phones and other gadgets with them almost everywhere. Thus, integrating Location Awareness in mobile applications gives users a much more real experience. Therefore, this paper presents an algorithm to predict user Location in 5G networks by using received signal strength (RSS) measurements. Initially, the relative coordinates of users are computed using Isomap. Then the relative coordinates of users are transformed by Procrustes analysis. In order to evaluate the performance of the proposed algorithm, the Cramer- Rao lower bound is derived, which is the lower bound on error variance. It can be concluded from our results that the proposed approach outperforms those found in the existing literature.
Christopher Edwards - One of the best experts on this subject based on the ideXlab platform.
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Location Awareness Rescue System: Support for Mountain Rescue Teams
2010 Ninth IEEE International Symposium on Network Computing and Applications, 2010Co-Authors: Panagiotis Georgopoulos, Ben Mccarthy, Christopher EdwardsAbstract:Aiding the efficient collaboration and coordination of rescue teams is a difficult task especially in a mountainous region. Challenges emerge from quickly alerting and debriefing rescuers, to deploying them effectively, and also coordinating and monitoring them in the rural search domain. Knowing the exact Location of the rescuers and vehicles involved in a mountain search and rescue mission is a key element for the successful progress of the mission and aids the mission coordinator, who usually stays at the headquarters, to take fast and informed decisions. In this paper we present the devised Location Awareness Rescue System that targets the aforementioned challenges, and provides Location information and updates of the rescuers in a real time manner as they are deployed in the rescue domain overlaid onto interactive maps. The results from our tests show that our system is a proficient presence management solution that can provide precise Location information by recovering from any periodic or total connectivity loss, and also improve and support mountain rescue teams leading to more effective and successful missions.
Soon Ju Kang - One of the best experts on this subject based on the ideXlab platform.
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U-Paging : A voice message delivery system based on real-time Location-Awareness
2011 IEEE International Conference on Consumer Electronics (ICCE), 2011Co-Authors: Yu Jin Park, Sung-ho Park, Soon Ju KangAbstract:In this paper, we introduce a ubiquitous voice message broadcast system - called u-Paging, by combining the technique of Location-Awareness and the voice message delivery service in ubiquitous sensor network environment. To actualize the u-Paging service, specialized hardware and middleware architecture are proposed under the wire/wireless hybrid ubiquitous network.
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U-FIPI: Ubiquitous Sensor Network Service Infra Supporting Bidirectional Location-Awareness between Mobile Nodes and Fixture Nodes
2009 6th IEEE Consumer Communications and Networking Conference, 2009Co-Authors: Soon Ju Kang, Jin Ho Shon, Sang Chul GoAbstract:We introduce a ubiquitous sensor network system, called U-FIPI, to monitor the early symptom of fire and intruder in indoor environment. Especially, this system adapts a novel approach to provide bidirectional Location- Awareness service between various mobile nodes and U-FIPI fixture nodes making it suitable for total service as a new concept of building management system.
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ieee 802 15 4 mac based Location id exchange protocol for realizing micro cell connectionless Location Awareness services
Journal of computing science and engineering, 2008Co-Authors: Soon Ju KangAbstract:We propose ID-exchange protocol for Connectionless Location-Awareness Service (CLAS) to locate mobile nodes in indoor sensor network. When adapting Location-Awareness service to sensor network, the target system must be designed in accordance with various metrics which reflect the system requirement. We especially consider sustainability of the existing service which has been provided for its original purpose, such as environmental monitoring. The detailed meaning of sustainability here is that, even if Location-Awareness service is newly added to the existing service, the system must be assured to retain a stable network condition, and to deal with newly caused traffic properly. The CLAS ID-exchange protocol is especially designed for fixture and mobile nodes communication to achieve these properties. The protocol operates on 802.15.4 MAC layer to make mobile node work independently of the procedure to build routing table of fixture node, so a stable routing condition can be achieved even if there are many mobile nodes. Moreover, the dedicated frequency channel is assigned only for this protocol, so that traffic caused by Location-Awareness service can be distributed to another channel. A real system adapting the protocol was implemented to monitor fire and authorities’ positions. We verified the overhead and elapsed time for Location-Awareness. The result shows the proposed protocol has a high performance in detecting speed, traffic distribution, and stability of overall network.
