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Signal Processing for Location Estimation and Tracking in Wireless Environments

  1. Research Article

    Exploring Landmark Placement Strategies for Topology-Based Localization in Wireless Sensor Networks

    In topology-based localization, each node in a network computes its hop-count distance to a finite number of reference nodes, or "landmarks". This paper studies the impact of landmark placement on the accuracy...

    Farid Benbadis, Katia Obraczka, Jorge Cortés and Alexandre Brandwajn

    EURASIP Journal on Advances in Signal Processing 2007 2008:275658

    Published on: 31 December 2007

  2. Research Article

    INEMO: Distributed RF-Based Indoor Location Determination with Confidence Indicator

    Using radio signal strength (RSS) in sensor networks localization is an attractive method since it is a cost-efficient method to provide range indication. In this paper, we present a two-tier distributed appro...

    Hongbin Li, Xingfa Shen, Jun Zhao, Zhi Wang and Youxian Sun

    EURASIP Journal on Advances in Signal Processing 2007 2008:216181

    Published on: 22 November 2007

  3. Research Article

    Nonparametric Bayesian Filtering for Location Estimation, Position Tracking, and Global Localization of Mobile Terminals in Outdoor Wireless Environments

    The mobile terminal positioning problem is categorized into three different types according to the availability of (1) initial accurate location information and (2) motion measurement data. Location estimation re...

    Mohamed Khalaf-Allah

    EURASIP Journal on Advances in Signal Processing 2007 2008:317252

    Published on: 22 November 2007

  4. Research Article

    A Markov Model for Dynamic Behavior of ToA-Based Ranging in Indoor Localization

    The existence of undetected direct path (UDP) conditions causes occurrence of unexpected large random ranging errors which pose a serious challenge to precise indoor localization using time of arrival (ToA). T...

    Mohammad Heidari and Kaveh Pahlavan

    EURASIP Journal on Advances in Signal Processing 2007 2008:241069

    Published on: 21 November 2007

  5. Research Article

    Performance Capabilities of Long-Range UWB-IR TDOA Localization Systems

    The theoretical and practical performance limits of a 2D ultrawideband impulse-radio localization system operating in the far field are studied under the assumption that estimates of location are based on time...

    Richard J. Barton and Divya Rao

    EURASIP Journal on Advances in Signal Processing 2007 2008:236791

    Published on: 14 November 2007

  6. Research Article

    Time of Arrival Estimation in Probability-Controlled Generalized CDMA Systems

    In recent years, more and more wireless communications systems are required to provide also a positioning measurement. In code division multiple access (CDMA) communication systems, the positioning accuracy is...

    Itsik Bergel, Efrat Isack and Hagit Messer

    EURASIP Journal on Advances in Signal Processing 2007 2008:170804

    Published on: 12 November 2007

  7. Research Article

    Code Tracking Algorithms for Mitigating Multipath Effects in Fading Channels for Satellite-Based Positioning

    The ever-increasing public interest in location and positioning services has originated a demand for higher performance global navigation satellite systems (GNSSs). In order to achieve this incremental perform...

    Mohammad Zahidul H. Bhuiyan, Elena Simona Lohan and Markku Renfors

    EURASIP Journal on Advances in Signal Processing 2007 2008:863629

    Published on: 8 November 2007

  8. Research Article

    A TOA-AOA-Based NLOS Error Mitigation Method for Location Estimation

    This paper proposes a geometric method to locate a mobile station (MS) in a mobile cellular network when both the range and angle measurements are corrupted by non-line-of-sight (NLOS) errors. The MS location ...

    Hong Tang, Yongwan Park and Tianshuang Qiu

    EURASIP Journal on Advances in Signal Processing 2007 2008:682528

    Published on: 8 November 2007

  9. Research Article

    Ultra-Wideband Geo-Regioning: A Novel Clustering and Localization Technique

    Ultra-wideband (UWB) technology enables a high temporal resolution of the propagation channel. Consequently, a channel impulse response between transmitter and receiver can be interpreted as signature for thei...

    Christoph Steiner, Frank Althaus, Florian Troesch and Armin Wittneben

    EURASIP Journal on Advances in Signal Processing 2007 2008:296937

    Published on: 7 November 2007

  10. Research Article

    Unequal Weighting for Improved Positioning in GPS-Less Sensor Networks

    Positioning can be done by means of triangulation in which triples of position-aware nodes estimate a neighbor's position with the help of distances. If a larger number of nodes exist, multiple position estima...

    Thomas Haenselmann, Marcel Busse, Thomas King and Wolfgang Effelsberg

    EURASIP Journal on Advances in Signal Processing 2007 2008:281635

    Published on: 24 October 2007

  11. Research Article

    NLOS Identification and Weighted Least-Squares Localization for UWB Systems Using Multipath Channel Statistics

    Non-line-of-sight (NLOS) identification and mitigation carry significant importance in wireless localization systems. In this paper, we propose a novel NLOS identification technique based on the multipath chan...

    İsmail Güvenç, Chia-Chin Chong, Fujio Watanabe and Hiroshi Inamura

    EURASIP Journal on Advances in Signal Processing 2007 2008:271984

    Published on: 2 August 2007