Cramer-Rao bound analysis of location estimation in multi-hop wireless sensor networks

Zuoyin Tang, Jianhua He

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    Location estimation is important for wireless sensor network (WSN) applications. In this paper we propose a Cramer-Rao Bound (CRB) based analytical approach for two centralized multi-hop localization algorithms to get insights into the error performance and its sensitivity to the distance measurement error, anchor node density and placement. The location estimation performance is compared with four distributed multi-hop localization algorithms by simulation to evaluate the efficiency of the proposed analytical approach. The numerical results demonstrate the complex tradeoff between the centralized and distributed localization algorithms on accuracy, complexity and communication overhead. Based on this analysis, an efficient and scalable performance evaluation tool can be designed for localization algorithms in large scale WSNs, where simulation-based evaluation approaches are impractical.

    Original languageEnglish
    Title of host publication2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013 - Proceedings
    PublisherIEEE
    Pages389-394
    Number of pages6
    ISBN (Print)9781479914067
    DOIs
    Publication statusPublished - 2013
    Event2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013 - Guilin, China
    Duration: 14 Aug 201316 Aug 2013

    Conference

    Conference2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013
    CountryChina
    CityGuilin
    Period14/08/1316/08/13

    Keywords

    • Wireless sensor networks
    • Algorithm design and analysis
    • Estimation
    • Vectors
    • Noise measurement
    • Distance measurement
    • Noise

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