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gps - gis
(861 results)-
Whitepapers
Levelling the Playing Field: How Companies Use Data for Competitive Advantage
Mar 2011
Nearly all companies realize that the way to gain a competitive advantage is to obtain better data, interpret them quickly, and distribute them in easier-to-use formats. However, there are many...
Provided by SAP
-
Whitepapers
Isolating Multi-Path Effects From the Position Estimate Residuals in GPS Receivers
Sep 2008
Multi-path reflections can cause GPS receiver devices to mis-calculate their location. Errors due to multi-path will tend to bias the position estimate from the true value. The redundancy of...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Panoramio -A Mobile Application Based on Android
Jul 2012
Panoramio is a mobile application which allows the users to find pictures of interesting places with a radar to guide one to them, using GPS. Since, the use of smart phones is gaining interest in...
Provided by Academy & Industry Research Collaboration Center
-
Whitepapers
Network Synchronization for Distributed Manet
Sep 2008
Mobile Ad-hoc NETworks (MANETs) are often characterized with rapidly changing topologies, presenting a constant challenge for time synchronization. This challenge holds especially true in tactical...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Self-Correcting Adaptive Tracking System
Oct 2008
The benefits of Global Positioning System (GPS) are recognized in numerous military as well as civilian applications. In many situations, however, GPS signals are simply not available or, at best,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
GPS - GSM Based Tracking System
Mar 2012
This paper proposed is an attempt to design a tracking unit that uses the global positioning system to determine the precise location of a object, person or other asset to which it is attached and...
Provided by International Journal of Engineering Trends and Technology
-
Whitepapers
Fractal Based Management of Heterogeneous Data Streams
Jul 2012
Efficient handling of huge amount of data stream is become mandatory in various domains such as business, finance, sensor networks, etc. Come through these data streams poses challenges those are...
Provided by International Journal of Computer Science and Information Technologies
-
White Papers
MRGIS: A MapReduce-Enabled High Performance Workflow System for GIS
Oct 2008
The growth of data used by data-intensive computations, e.g. Geographical Information Systems (GIS), has far outpaced the growth of the power of a single processor. The increasing demand of...
Provided by University of Wyoming
-
White Papers
Securing Geographical Routing in Mobile Ad-Hoc Networks
Jul 2008
The authors present geographical secure path routing, an infrastructure-free geographic routing protocol, that is resilient to disruptions caused by malicious or faulty nodes. Geographic locations...
Provided by Rutgers University
-
White Papers
Jumps: Enhancing Hop-Count Positioning in Sensor Networks Using Multiple Coordinates
Feb 2008
Positioning systems in self-organizing networks generally rely on measurements such as delay and received signal strength, which may be difficult to obtain and often require dedicated equipment....
Provided by Universite Pierre et Marie Curie
-
Whitepapers
Data-enabled Government: How Well is Our Personal Information Used and Protected?
Apr 2011
Governments are continually expanding the breadth and depth of data they hold about their citizens, from the provision of public health and welfare services, to law enforcement and public...
Provided by Hewlett-Packard (HP)
-
White Papers
Design and Implementation of a Wireless Sensor Network for Smart Homes
Sep 2010
Wireless Sensor Networks (WSNs) have become indispensable to the realization of smart homes. The objective of this paper is to develop such a WSN that can be used to construct smart home systems....
Provided by Dalian University Of Technology
-
White Papers
Leveling the Playing Field: How Companies Use Data for Competitive Advantage
Apr 2011
Nearly all companies realize that the way to gain a competitive advantage is to obtain better data, interpret them quickly, and distribute them in easier-to-use formats. However, there are many...
Provided by SAP
-
White Papers
Techniques for Similarity Searching in Multimedia Databases
Oct 2009
The representation of multidimensional points and objects, and the development of appropriate indexing methods that enable them to be retrieved efficiently is a well-studied subject. Most of these...
Provided by VLDB Endowment
-
White Papers
TEAMTRACKER - An Innovative Team Collaboration System
Sep 2010
GPS (Global Positioning System) has been around for many years and becomes currently the most widely used system in determining position and measuring distance of objects on earth. Integration of...
Provided by Victoria University
-
White Papers
Reducing Handover Delay by Preselective Scanning Using GPS
Nov 2010
IEEE 802.11 based mobile communication towers is used very much in many personal and industrial purposes as it provides a continuous connectivity to Mobile Nodes (MNs) and allows them to change...
Provided by Hong Kong University of Science and Technology
-
White Papers
Aggregation Languages for Moving Object and Places of Interest Data
Aug 2007
The authors address aggregate queries over GIS data and moving object data, where non-spatial data are stored in a data warehouse. They propose a formal data model and query language to express...
Provided by Hasselt University
-
White Papers
Spatial Aggregation: Data Model and Implementation
Feb 2008
Data aggregation in Geographic Information Systems (GIS) is a desirable feature, only marginally present in commercial systems nowadays, mostly through ad-hoc solutions. Moreover, little attention...
Provided by Hasselt University
-
White Papers
Comparative Evaluation of Received Signal-Strength Index (RSSI) Based Indoor Localization Techniques for Construction Jobsites
Sep 2010
This paper evaluates the accuracy of several RSSI-based localization techniques on a live jobsite and compares them to results obtained in an operating building. RSSI-based localization algorithms...
Provided by Reed Elsevier
-
White Papers
Greedy Face Routing With Face ID Support in Wireless Networks
Sep 2007
Geographic face routing provides an attractive way for packet delivery in wireless networks due to its high reliability and low overhead. A good face routing protocol should provide guaranteed...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
3-D Optical Wireless Localization
Mar 2010
In this paper, the authors explore the possibility of using directionality of free-space-optical (a.k.a. optical wireless) communications for solving the 3-D localization problem in ad-hoc...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
RF-GPS: RFID Assisted Localization in VANETs
May 2009
Providing vehicles' position is essential in VANETs. Currently, GPS positioning is widely used, but the accuracy is not adequate for emerging safety applications. In order to provide accurate...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Mitigating GPS Error in Mobile Environments
Jul 2008
The authors study the problem of accurately determining the position of a mobile device using imprecise off-the-shelf GPS devices. Existing work has not yet explored the impact of mobility on GPS...
Provided by University of Waterloo
-
White Papers
Data-Archiving White Paper
Dec 2010
The shift to digital content and communications means organizations of all sizes are creating and saving more data than ever before. The increasing use of e-mail and messaging technologies, social...
Provided by CDW
-
White Papers
Geometric and Signal Strength Dilution of Precision (DoP) Wi-Fi
Aug 2009
The democratization of wireless networks combined to the emergence of mobile devices increasingly autonomous and efficient lead to new services. Positioning services become overcrowded. Accuracy...
Provided by Universite de Franche-Compte
-
White Papers
Cross Verification-Based Detection of the Evil Ring Attack in Wireless Sensor Networks
Apr 2010
In ad hoc networks and wireless sensor networks, several routing algorithms rely on the knowledge by the network nodes of their own geographic location and those of others. For cases where a node...
Provided by Carleton University
-
White Papers
Discovering GIS Sources on the Web Using Summaries
Jun 2008
In this paper, the authors consider the problem of discovering GIS data sources on the web. Source discovery queries for GIS data are specified using keywords and a region of interest. A source is...
Provided by Association for Computing Machinery
-
White Papers
Location Management Technique to Reduce Complexity in Cellular Networks
Jul 2010
An important issue in the design of mobile computing is how to manage the location information of mobile nodes in wireless cellular networks. The existing system has two approaches. First approach...
Provided by Anna University
-
White Papers
Localization Technique in VANets Using Clustering (LVC)
Jul 2010
Relative location information is an important aspect in vehicular Ad hoc networks .It helps to build vehicle topology maps, also provides location information of nearby vehicles. Due to the...
Provided by Universite Amar Telidji Laghouat
-
White Papers
Interference in Data Communication Over Narrow-Band PLC
Nov 2008
Interference in narrow-band PLC (Power Line Communication) is discussed in the paper. In power lines, interference greatly affects the attainable data rate and reliability. Communication rate was...
Provided by Brno University of Technology
-
White Papers
Minimization of Handoff Latency by Vector Analysis Method
May 2011
Due to rapid growth in IEEE 802.11 based Wireless Local Area Networks(WLAN), handoff has become a burning issue. A Mobile Station (MS) requires handoff when it travels out of the coverage area of...
Provided by Jadavpur University
-
White Papers
Hardware Implementation of a Topology Control Algorithm for MANETS Using Nomadic Community Mobility Model
Feb 2009
Recently mobile ad hoc network has attracted great interest with a variety of real applications. Rigorous research work, mainly on efficient routing protocol designs has been done and numerous...
Provided by JATIT
-
White Papers
The Role of Kalman Filter in the Modelling of GPS Errors
Feb 2009
This paper describes about the modeling of errors (like ionospheric delays, atmospheric delays, Troposphericelays, Multipath effects and dilution of precision etc.,) affecting the GPS signals as...
Provided by JATIT
-
White Papers
Design and Development of "GlobeTrotter" - An Innovative Location-Based System Using J2ME
Mar 2008
GPS (Global Positioning System) is the most popular system for determination of location and navigation in the world. GPS works in all weather conditions and has become a widely used aid to...
Provided by Victoria University
-
White Papers
Compact GPS Microstrip Patch Antenna
Jul 2008
In this paper, the effect of shorting wall length on the circular polarization of shorted microstrip patch antenna is examined. The theoretical analysis is based on the High Frequency Software...
Provided by JATIT
-
White Papers
The Effects of Global Positioning System for Reliable Positioning, Navigation and Timing Services
Oct 2008
The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide...
Provided by JATIT
-
White Papers
Location Prediction Mechanisms for Tracking Lost Unmanned Vehicles
Dec 2009
The growth of technologies has made it possible for the introduction and use of autonomous vehicles that can be operated in any hazardous environment. Unmanned Ground Vehicles are a kind of...
Provided by National Institute of Technology, Tiruchirappalli
-
White Papers
Constrained Reverse Nearest Neighbor Search on Mobile Objects
Nov 2009
While the Reverse k-Nearest Neighbor (RkNN) search problem, i.e. finding all objects in a database that have a given query q among their corresponding k-nearest neighbors, has been studied...
Provided by Association for Computing Machinery
-
White Papers
Effectively Indexing the Uncertain Space
Sep 2010
With the rapid development of various optical, infrared, and radar sensors and GPS techniques, there are a huge amount of multidimensional uncertain data collected and accumulated everyday....
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
User Acceptance of Location-Based Services
Jun 2009
Location-Based Services (LBS) exploit the known location of a user to provide services dependent on their geographic context and personalized needs. The development and arrival of broadband mobile...
Provided by World Academy of Science, Engineering and Technology
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Whitepapers
INS Assisted Fuzzy Tracking Loop for GPS Guided Missiles and Vehicular Applications
Dec 2012
Autonomous Navigation Systems (ANS) used in ballistic missiles and other high dynamic platforms are mostly dependent on the Global Positioning System (GPS). GPS users face limitations in terms of...
Provided by Hindawi Publishing
-
Whitepapers
Non Linear Optimum Filtering and Smoothing Based IMM in GPS Navigation
Nov 2012
The information from Global Positioning System (GPS) has been increasingly used in many applications. Navigation is one of the important applications. To estimate the state of the vehicle, Kalman...
Provided by Anna University
-
Whitepapers
Advanced Multipath Mitigation Techniques for Satellite-Based Positioning Applications
Oct 2010
Multipath remains a dominant source of ranging errors in Global Navigation Satellite Systems (GNSS), such as the Global Positioning System (GPS) or the future European satellite navigation system...
Provided by Tampere University of Technology
-
Whitepapers
Mercury Medical - Finds an easy way to generate reporting information across its five distinct divisions
Jan 2013
IBM® Business Partner BlueNET Technologies worked with Mercury Medical to implement IBM Cognos® Express and developed an automatic, web-based, and interactive reporting system in a...
Provided by IBM
-
Whitepapers
A Minimax Unbiased Estimation Fusion in Distributed Multisensor Localization and Tracking
Oct 2012
A minimax estimation fusion in distributed multi-sensor systems is proposed, which aims to minimize the worst-case squared estimation error when the cross-covariances between local sensors are...
Provided by Hindawi Publishing
-
Whitepapers
Design and Development of Arm Based Embedded Intelligent Public Transport Vehicle Position System
Nov 2012
With ARM7 as the core, this paper discusses a kind of design of vehicle location system. The new mobile vehicle positioning architecture and working theory of this system is integrated by a lot of...
Provided by ISSN
-
Whitepapers
Location-Based Application Based on Prefetching on Mobile Applications: Case Study of Finding Interesting Restaurants
Nov 2012
In this paper, the authors are interested in developing a mobile application which locates interesting points for a user. The interesting points are displayed in a map based on Google Map. They...
Provided by International Journal of Computer Applications
-
Whitepapers
Web Application and GPS Integration in Motor Vehicle Accident Detection - A Case of Nairobi, Kenya
Dec 2012
When accidents occur, help to the victims is delayed mostly due to lack of prompt detection and reporting. Further, an easily accessible electronic motor vehicle accident database does not exist...
Provided by International Journal of Computer Applications
-
Whitepapers
Impact of Used Communication Technology on the Navigation System for Hybrid Environment
Jun 2012
This paper deals with navigation of mobile device in outdoor and indoor environment by only navigation system or application. In this paper, the navigation system is proposed in the light of...
Provided by Hindawi Publishing
-
Whitepapers
GNSS Array-Based Acquisition: Theory and Implementation
Jul 2012
Global Navigation Satellite Systems (GNSS) is the general concept used to identify those systems that allow user positioning and timing based on a constellation of satellites. Specific GNSSs are...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
-
Whitepapers
Performance Analysis in Dynamic VLR based Location Management Scheme for the Omni Directional Mobility Movement for PCS Networks
Dec 2012
Location management plays an important role in guaranteeing the effective operation of Personal Communication services (PCS). In this paper a dynamic VLR (Visitor Location Register) based location...
Provided by International Journal of Computer Applications
-
Whitepapers
OnTraJaCS: Ontology Based Traffic Jam Control System
Dec 2012
Traffic jams and congestions have bad effects on drivers and the whole community. Most - if not all - route planning systems focus on finding the optimal/fastest route for its users. Users might...
Provided by International Journal of Computer Applications
-
Whitepapers
Performance Evaluation of Mobile U-Navigation Based on GPS/WLAN Hybridization
Aug 2012
This paper present the authors' mobile u-navigation system. This approach utilizes hybridization of wireless local area network and Global Positioning System internal sensor which to receive...
Provided by Universiti Teknikal Malaysia Melaka
-
Whitepapers
New Technique for Proposing Network's Topology Using GPS and GIS
Mar 2012
The problem of proposed topology for network comes when using Prim's algorithm with default distance (unrealistic distances) between network's nodes and don't care about the lakes, high hills,...
Provided by Cornell University
-
Whitepapers
An IMU-Aided Carrier-Phase Differential GPS Positioning System
Jun 2012
The authors consider the problem of carrier-phase differential GPS positioning for an Land Vehicle Navigation System (LVNS), tightly coupled with an Inertial Measurement Unit (IMU) and a...
Provided by Institute of Electrical and Electronics Engineers
-
Whitepapers
A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique
Jul 2012
Accurate vehicular localization is important for various Cooperative Vehicle Safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, the authors propose a...
Provided by Nanyang Technological University
-
Whitepapers
Overview and Analysis of UWB Signal for Low Power WPAN
Aug 2010
In modern short range wireless applications, RF, Bluetooth and UWB communication schemes are recommended with respect to power consumption, low/high data rates and location capability. Though...
Provided by International Journal of Computer Applications
-
Whitepapers
Instant Theft Alert and Tracking System in Car
Nov 2011
There are a variety of areas wherein a need exists for a system capable of identifying and tracking the geographic location of a remote valuable object. One such valuable object which requires...
Provided by International Journal of Computer Applications
-
Whitepapers
Bearing Only Tracking of Maneuvering Targets Using a Single Coordinated Turn Model
Oct 2010
The passive tracking of manoeuvring objects using Line Of Sight (LOS) angle measurements only is an important field of research in the application areas of submarine tracking, aircraft...
Provided by International Journal of Computer Applications
-
Whitepapers
Testing OFDM-Based Positioning Using the Digital TV Signals
Aug 2012
Recent regulatory incentives (E911) and numerous location-based services and applications currently require accurate urban and indoor positioning, which are challenging environments for Global...
Provided by EURASIP
-
Whitepapers
A Boltzmann Machine to Model the Multipath Environment for Particle Filtering Based GPS Navigation
Aug 2012
In GPS navigation, an accuracy of about 10 m can be currently obtained, but this performance can be strongly degraded in a multipath environment. The multipath directly impacts the distribution of...
Provided by EURASIP
-
Whitepapers
Navigation System for Elderly Care Applications Based on Wireless Sensor Networks
Aug 2012
The paper presents the development of a navigation system based on wireless sensor networks specially designed for elderly care applications. The main constraints of the application scenario are...
Provided by EURASIP
-
Whitepapers
Rethinking the Overhead of Geo-Localization Information for Vehicular Communications
Aug 2007
Geo-localization information is a key component for providing location-based services for Intelligent Transportation Systems (ITS). Generally obtained by GPS devices and transmitted by Wireless...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Planar Dual Band GPS and DSRC Antenna for Road Vehicles
Aug 2007
There are a number of initiatives ongoing in the area of wireless communications over short distances between the roadside and mobile radio units, between mobile units, and between portable units...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Extended Collision Judgment Algorithm for Vehicular Collision Avoidance Support System (VCASS) in Advanced ITS
Aug 2008
In recent years, researches and developments on ITS are carried out to solve many problems in road traffic. IVC (Inter-Vehicular Communications) is the key technology to realize the next...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Mobile Sensor System and Its Performance of Traffic Monitoring
Aug 2008
The authors present a mobile sensor system for traffic monitoring (GSSTM), which is a typically Grid application in ShanghaiGrid to provide accurate real-time traffic status information. Several...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Iterative Spreading-Sequence Acquisition in the Multiple Receive Antenna Aided DS-UWB Downlink
Aug 2008
In this paper, the authors investigate an iterative Message Passing (MP) aided PseudoNoise (PN) sequence acquisition scheme employing both beneficially selected Generator Polynomials (GPs) and...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A New Path Loss Predicting Strategy for Radio Network Planning
Aug 2008
This paper presents a new clustering based strategy for path loss prediction. The authors describe how data mining technology can be utilized to explore the knowledge existing in massive...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Single-Feed Dual-Band Stacked Patch Antenna for Orthogonal Circularly Polarized GPS and SDARS Applications
Aug 2008
The authors describe a single-feed stacked patch antenna design that is capable of simultaneously receiving both Right Hand Circularly Polarized (RHCP) satellite signals within the GPS L1...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Secured Position Location and Tracking (SPL&T) for Detection of Multiple Malicious Nodes Maintaining Two Friendly References in Mobile Ad Hoc Networks
Mar 2012
Secured Position Location and Tracking (PL&T) scheme is developed for multiple malicious radios or nodes detection using integrated key based strict friendly scheme and position location and...
Provided by Prairie Public Broadcasting
-
Case Studies
Digi TransPort Helps Reduce Streetlamp Power Consumption
May 2010
Hafslund is Norway's largest supplier of electric power and security, managing streetlights for local councils throughout the country. Hafslund needed to upgrade their streetlamp control system...
Provided by Digi International
-
Whitepapers
Network Resource Availability Evaluation for IEEE802.11a/b Based WLAN Carrying Different Service Types
Jan 2010
A variety of wireless network technologies have been developed and deployed, including GSM/GPRS, UMTS, and WLAN. The advantages of having an integrated heterogeneous communication environment...
Provided by University of Ljubljana
-
Whitepapers
A Dynamic Propagation Prediction Platform Over Irregular Terrain and Buildings for Wireless Communications
Aug 2007
The paper introduces an algorithm that converts dynamically GIS terrain and clutter information into the flat terrain input parameterization needed for COST 231 Walfisch-Ikegami model. Under this...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Clustering of Scatterers Over an Irregular Clutter Environment: An Extension of COST 273 MIMO Channel Model
Aug 2007
In this paper a realistic model that is an extension of COST 273 channel model, introducing terrain and clutter information into cluster generation, is presented. The authors' model is based on a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Enabling IMS With Multicast and Broadcast Capabilities
Jul 2007
The evolution of third generation cellular network focuses on the provision of enriched multimedia services and the support of QoS (Quality of Service) guarantees. The IMS (IP Multimedia...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Exploiting FM Radio Data System for Adaptive Clock Calibration in Sensor Networks
Jul 2011
Clock synchronization is critical for Wireless Sensor Networks (WSNs) due to the need of inter-node coordination and collaborative information processing. Although many message passing protocols...
Provided by Association for Computing Machinery
-
Whitepapers
An Ubiquitous Mobile Multimedia System for Events Agenda
Mar 2012
The current growth of mobile devices enabled with GPS receptors, cameras, accelerometers, and Internet access offers new opportunities for new mobile ubiquitous multimedia applications. Such...
Provided by Dalian University Of Technology
-
Whitepapers
Smart Recommendation by Mining Large-Scale GPS Traces
Mar 2012
Recommending good driving paths is valuable to taxi drivers for reducing unnecessary waste in fuel and increasing revenue. Driving only according to personal experience may lead to poor...
Provided by Shanghai Institute of Applied Physics, Chinese Academy of Sciences
-
Whitepapers
Real-Time In-Network Single Frequency GPS Processing for Deformation Monitoring
Mar 2012
In this paper, the authors explore the use of Wireless Mesh Networks (WMN) for the purpose of exchanging GPS raw data within GPS stations in a WMN to support real-time in-network processing of...
Provided by Nanyang Technological University
-
Whitepapers
Mobile Indoor Location Based on Fractional Differentiation
Mar 2012
While the static indoor location of a Mobile Terminal (MT) has been extensively studied on last decade, the prediction of the trajectory of a MT still is the major problem for building mobile...
Provided by Institute of Electrical & Electronic Engineers
-
White Papers
Design and Implementation of a Wireless Sensor Network for Smart Homes
Sep 2010
Wireless Sensor Networks (WSNs) have become indispensable to the realization of smart homes. The objective of this paper is to develop such a WSN that can be used to construct smart home systems....
Provided by Dalian University Of Technology
-
White Papers
Leveling the Playing Field: How Companies Use Data for Competitive Advantage
Apr 2011
Nearly all companies realize that the way to gain a competitive advantage is to obtain better data, interpret them quickly, and distribute them in easier-to-use formats. However, there are many...
Provided by SAP
-
White Papers
Techniques for Similarity Searching in Multimedia Databases
Oct 2009
The representation of multidimensional points and objects, and the development of appropriate indexing methods that enable them to be retrieved efficiently is a well-studied subject. Most of these...
Provided by VLDB Endowment
-
White Papers
TEAMTRACKER - An Innovative Team Collaboration System
Sep 2010
GPS (Global Positioning System) has been around for many years and becomes currently the most widely used system in determining position and measuring distance of objects on earth. Integration of...
Provided by Victoria University
-
White Papers
Reducing Handover Delay by Preselective Scanning Using GPS
Nov 2010
IEEE 802.11 based mobile communication towers is used very much in many personal and industrial purposes as it provides a continuous connectivity to Mobile Nodes (MNs) and allows them to change...
Provided by Hong Kong University of Science and Technology
-
White Papers
Aggregation Languages for Moving Object and Places of Interest Data
Aug 2007
The authors address aggregate queries over GIS data and moving object data, where non-spatial data are stored in a data warehouse. They propose a formal data model and query language to express...
Provided by Hasselt University
-
White Papers
Spatial Aggregation: Data Model and Implementation
Feb 2008
Data aggregation in Geographic Information Systems (GIS) is a desirable feature, only marginally present in commercial systems nowadays, mostly through ad-hoc solutions. Moreover, little attention...
Provided by Hasselt University
-
White Papers
Comparative Evaluation of Received Signal-Strength Index (RSSI) Based Indoor Localization Techniques for Construction Jobsites
Sep 2010
This paper evaluates the accuracy of several RSSI-based localization techniques on a live jobsite and compares them to results obtained in an operating building. RSSI-based localization algorithms...
Provided by Reed Elsevier
-
White Papers
Greedy Face Routing With Face ID Support in Wireless Networks
Sep 2007
Geographic face routing provides an attractive way for packet delivery in wireless networks due to its high reliability and low overhead. A good face routing protocol should provide guaranteed...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
3-D Optical Wireless Localization
Mar 2010
In this paper, the authors explore the possibility of using directionality of free-space-optical (a.k.a. optical wireless) communications for solving the 3-D localization problem in ad-hoc...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
RF-GPS: RFID Assisted Localization in VANETs
May 2009
Providing vehicles' position is essential in VANETs. Currently, GPS positioning is widely used, but the accuracy is not adequate for emerging safety applications. In order to provide accurate...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Mitigating GPS Error in Mobile Environments
Jul 2008
The authors study the problem of accurately determining the position of a mobile device using imprecise off-the-shelf GPS devices. Existing work has not yet explored the impact of mobility on GPS...
Provided by University of Waterloo
-
White Papers
Data-Archiving White Paper
Dec 2010
The shift to digital content and communications means organizations of all sizes are creating and saving more data than ever before. The increasing use of e-mail and messaging technologies, social...
Provided by CDW
-
White Papers
Geometric and Signal Strength Dilution of Precision (DoP) Wi-Fi
Aug 2009
The democratization of wireless networks combined to the emergence of mobile devices increasingly autonomous and efficient lead to new services. Positioning services become overcrowded. Accuracy...
Provided by Universite de Franche-Compte
-
White Papers
Cross Verification-Based Detection of the Evil Ring Attack in Wireless Sensor Networks
Apr 2010
In ad hoc networks and wireless sensor networks, several routing algorithms rely on the knowledge by the network nodes of their own geographic location and those of others. For cases where a node...
Provided by Carleton University
-
White Papers
Discovering GIS Sources on the Web Using Summaries
Jun 2008
In this paper, the authors consider the problem of discovering GIS data sources on the web. Source discovery queries for GIS data are specified using keywords and a region of interest. A source is...
Provided by Association for Computing Machinery
-
White Papers
Location Management Technique to Reduce Complexity in Cellular Networks
Jul 2010
An important issue in the design of mobile computing is how to manage the location information of mobile nodes in wireless cellular networks. The existing system has two approaches. First approach...
Provided by Anna University
-
White Papers
Localization Technique in VANets Using Clustering (LVC)
Jul 2010
Relative location information is an important aspect in vehicular Ad hoc networks .It helps to build vehicle topology maps, also provides location information of nearby vehicles. Due to the...
Provided by Universite Amar Telidji Laghouat
-
White Papers
Interference in Data Communication Over Narrow-Band PLC
Nov 2008
Interference in narrow-band PLC (Power Line Communication) is discussed in the paper. In power lines, interference greatly affects the attainable data rate and reliability. Communication rate was...
Provided by Brno University of Technology
-
White Papers
Minimization of Handoff Latency by Vector Analysis Method
May 2011
Due to rapid growth in IEEE 802.11 based Wireless Local Area Networks(WLAN), handoff has become a burning issue. A Mobile Station (MS) requires handoff when it travels out of the coverage area of...
Provided by Jadavpur University
-
White Papers
Hardware Implementation of a Topology Control Algorithm for MANETS Using Nomadic Community Mobility Model
Feb 2009
Recently mobile ad hoc network has attracted great interest with a variety of real applications. Rigorous research work, mainly on efficient routing protocol designs has been done and numerous...
Provided by JATIT
-
White Papers
The Role of Kalman Filter in the Modelling of GPS Errors
Feb 2009
This paper describes about the modeling of errors (like ionospheric delays, atmospheric delays, Troposphericelays, Multipath effects and dilution of precision etc.,) affecting the GPS signals as...
Provided by JATIT
-
White Papers
Design and Development of "GlobeTrotter" - An Innovative Location-Based System Using J2ME
Mar 2008
GPS (Global Positioning System) is the most popular system for determination of location and navigation in the world. GPS works in all weather conditions and has become a widely used aid to...
Provided by Victoria University
-
White Papers
Compact GPS Microstrip Patch Antenna
Jul 2008
In this paper, the effect of shorting wall length on the circular polarization of shorted microstrip patch antenna is examined. The theoretical analysis is based on the High Frequency Software...
Provided by JATIT
-
White Papers
The Effects of Global Positioning System for Reliable Positioning, Navigation and Timing Services
Oct 2008
The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide...
Provided by JATIT
-
White Papers
Location Prediction Mechanisms for Tracking Lost Unmanned Vehicles
Dec 2009
The growth of technologies has made it possible for the introduction and use of autonomous vehicles that can be operated in any hazardous environment. Unmanned Ground Vehicles are a kind of...
Provided by National Institute of Technology, Tiruchirappalli
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White Papers
Constrained Reverse Nearest Neighbor Search on Mobile Objects
Nov 2009
While the Reverse k-Nearest Neighbor (RkNN) search problem, i.e. finding all objects in a database that have a given query q among their corresponding k-nearest neighbors, has been studied...
Provided by Association for Computing Machinery
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White Papers
Effectively Indexing the Uncertain Space
Sep 2010
With the rapid development of various optical, infrared, and radar sensors and GPS techniques, there are a huge amount of multidimensional uncertain data collected and accumulated everyday....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
User Acceptance of Location-Based Services
Jun 2009
Location-Based Services (LBS) exploit the known location of a user to provide services dependent on their geographic context and personalized needs. The development and arrival of broadband mobile...
Provided by World Academy of Science, Engineering and Technology
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White Papers
SeTraStream: Semantic-Aware Trajectory Construction Over Streaming Movement Data
May 2011
With the growth of location-based tracking technology like GPS, RFID and GSM networks, an enormous amount of trajectory data are generated from various real life applications, including traffic...
Provided by EPFL
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White Papers
GeoSEMA: A Modeling Platform, Emerging "GeoSpatial-Based Evolutionary and Mobile Agents"
Jun 2009
Spatial and mobile computing evolves. This paper describes a smart modeling platform called "GeoSEMA". This approach tends to model multidimensional GeoSpatial Evolutionary and Mobile Agents....
Provided by Lebanese University
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White Papers
Tracking of Mobile Devices Through Bluetooth Contacts
Oct 2010
The authors investigate if it is possible to reconstruct a mobile phone's mobility using its Bluetooth contacts with other mobile devices, some of which are equipped with GPS receivers. The data...
Provided by Ecole Polytechnique Federale de Lausanne
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White Papers
HTPCP: GNSS-R Multi-Channel Cross-Correlation Waveforms Post-Processing Solution for GOLD-RTR Instrument
Sep 2010
Global Navigation Satellite System Reflectometry (GNSS-R) remote sensing is a new remote sensing technique of satellite navigation application. Essentially, it entails a method of remote sensing...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
Extended Data Life Management
Jun 2011
As increasing amounts of data and content are getting stored over longer periods of time, how do you know the data will be available when needed? Are you confident that data that has sat untouched...
Provided by Quantum
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Webcasts
Guardly
Jan 2011
Guardly is the first mobile personal safety service that gives people the ability to alert family, friends and local authorities about an emergency in a single tap. Guardly uniquely allows one's...
Provided by DEMO
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White Papers
Location Updating Strategies in Moving Object Databases
Apr 2009
Recent advances in wireless, communication systems have led to important new applications of Moving Object Databases (MOD). Typical application examples of Moving Object Databases (MOD) might...
Provided by Minufiya University
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White Papers
A Quality of Service Strategy to Select Coding Schemes in General Packet Radio Service System
Jun 2009
The internet is used for wide variety of applications in wired, fixed wireless and mobile wireless environment. The requirements of one application / environment will vary from another application...
Provided by Hannam university
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White Papers
Extension of GPS Broadcast Ephemeris to Determine Satellite Velocity and Acceleration
Apr 2009
This paper presents an expansion of the algorithm provided in the GPS ICD to include the precise real-time computation in ECEF coordinate of the velocity and acceleration components of the...
Provided by University of Leeds
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White Papers
A Novel Distributed Sensor Positioning System Using the Dual of Target Tracking
Feb 2008
As one of the fundamental issues in Wireless Sensor Networks (WSNs), the sensor localization problem has recently received extensive attention. In this paper, the authors investigate this problem...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
IBM Delivers Extraordinary Efficiencies via Primary Storage compression
Jul 2011
Find out the difference between "controlling" data and "managing" data, and why enterprises are more focused on the latter. This paper discusses IBM Real-time Compression, a technology that...
Provided by IBM
