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Wireless Location Technologies and Applications

  1. Research Article

    Performance Evaluation of Indoor Localization Techniques Based on RF Power Measurements from Active or Passive Devices

    The performance of networks for indoor localization based on RF power measurements from active or passive devices is evaluated in terms of the accuracy, complexity, and costs. In the active device case, the te...

    Damiano De Luca, Franco Mazzenga, Cristiano Monti and Marco Vari

    EURASIP Journal on Advances in Signal Processing 2006 2006:074796

    Published on: 17 August 2006

  2. Research Article

    Practical Network-Based Techniques for Mobile Positioning in UMTS

    This paper presents results of research on network-based positioning for UMTS (universal mobile telecommunication system). Two new applicable network-based cellular location methods are proposed and assessed b...

    Jakub Borkowski and ukka Lempiäinen

    EURASIP Journal on Advances in Signal Processing 2006 2006:012930

    Published on: 16 August 2006

  3. Research Article

    Time of Arrival Estimation for UWB Localizers in Realistic Environments

    This paper investigates time of arrival (ToA) estimation methods for ultra-wide bandwidth (UWB) propagation signals. Different algorithms are implemented in order to detect the direct path in a dense multipath...

    Chiara Falsi, Davide Dardari, Lorenzo Mucchi and Moe Z Win

    EURASIP Journal on Advances in Signal Processing 2006 2006:032082

    Published on: 10 July 2006

  4. Research Article

    Cramér-Rao-Type Bounds for Localization

    The localization problem is fundamentally important for sensor networks. This paper, based on "Estimation bounds for localization" by the authors (2004 © IEEE), studies the Cramér-Rao lower bound (CRB) for two...

    Cheng Chang and Anant Sahai

    EURASIP Journal on Advances in Signal Processing 2006 2006:094287

    Published on: 27 May 2006

  5. Research Article

    Systematic Errors and Location Accuracy in Wireless Networks

    Wireless systems already provide time delay and signal strength measurements and the future may see antenna arrays that provide directional information. All these may be used for positioning. Although the stat...

    Harri Saarnisaari and Timo Bräysy

    EURASIP Journal on Advances in Signal Processing 2006 2006:081787

    Published on: 24 May 2006

  6. Research Article

    Blind Mobile Positioning in Urban Environment Based on Ray-Tracing Analysis

    A novel scheme is described for determining the position of an unknown mobile terminal without any prior information of transmitted signals, keeping in mind, for example, radiowave surveillance. The proposed p...

    Shohei Kikuchi, Akira Sano and Hiroyuki Tsuji

    EURASIP Journal on Advances in Signal Processing 2006 2006:038989

    Published on: 25 April 2006

  7. Research Article

    An Innovative Gateway for Indoor Positioning

    Enabling the pervasive paradigm requires the incorporation of location information. Retrieving location data has been a field of ongoing research for both the outdoor and indoor wireless systems. The results i...

    Giannis F. Marias, Giorgos Papazafeiropoulos, Nikos Priggouris, Stathes Hadjiefthymiades and Lazaros Merakos

    EURASIP Journal on Advances in Signal Processing 2006 2006:081714

    Published on: 18 April 2006

  8. Research Article

    Robust Estimator for Non-Line-of-Sight Error Mitigation in Indoor Localization

    Indoor localization systems are undoubtedly of interest in many application fields. Like outdoor systems, they suffer from non-line-of-sight (NLOS) errors which hinder their robustness and accuracy. Though man...

    R. Casas, A. Marco, J. J. Guerrero and J. Falcó

    EURASIP Journal on Advances in Signal Processing 2006 2006:043429

    Published on: 16 April 2006

  9. Research Article

    Adaptive Subchip Multipath Resolving for Wireless Location Systems

    Reliable positioning of cellular users in a mobile environment requires accurate resolving of overlapping multipath components. However, this task is difficult due to fast channel fading conditions and data il...

    Nabil R Yousef, Ali H Sayed and Nima Khajehnouri

    EURASIP Journal on Advances in Signal Processing 2006 2006:025431

    Published on: 12 April 2006

  10. Research Article

    A New Location Estimation System for Wireless Networks Based on Linear Discriminant Functions and Hidden Markov Models

    Location estimation is a recent interesting research area that 0exploits the possibilities of modern communication technology. In this paper, we present a new location system for wireless networks that is espe...

    Galo Nuño-Barrau and José M. Páez-Borrallo

    EURASIP Journal on Advances in Signal Processing 2006 2006:068154

    Published on: 6 April 2006

  11. Research Article

    Application of Beamforming in Wireless Location Estimation

    A simple technique to estimate the position of a given mobile source inside a building is based on the received signal strength. For this methodology to have a reasonable accuracy, radio visibility of the mobi...

    Kamran Sayrafian-Pour and Dominik Kaspar

    EURASIP Journal on Advances in Signal Processing 2006 2006:051673

    Published on: 20 March 2006

  12. Research Article

    Autonomous Positioning Techniques Based on Cramér-Rao Lower Bound Analysis

    We consider the problem of autonomously locating a number of asynchronous sensor nodes in a wireless network. A strong focus lies on reducing the processing resources needed to solve the relative positioning p...

    Mats Rydström, Andreu Urruela, Erik G. Ström and Arne Svensson

    EURASIP Journal on Advances in Signal Processing 2006 2006:093043

    Published on: 12 March 2006