Location Finding in Wireless Sensor Network Based on Range-Free Schemes

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Nekooei, Mohammad | 2010

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Type of Document: M.Sc. Thesis
Language: English
Document No: 40295 (52)
University: Sharif University of Technology, International Campus, Kish Island
Department: Science and Engineering
Advisor(s): Manzuri, Mohammad Taghi
Abstract:
Sensor Localization is a crucial part of many location‐dependent applications that utilize wireless sensor networks (WSNs). Several approaches, including range‐based and range‐free, have been proposed to calculate the position of randomly deployed sensor nodes. With specific hardware, the range‐based schemes typically achieve high accuracy based on either node‐to-node distances or angles. On the other hand, the range‐free mechanisms support less positioning accuracy with less expense. The proposed scheme is based on range‐free localization, which utilizes the received signal strength (RSS) from the anchor nodes. In this work, genetic fuzzy and neuro-fuzzy systems are used to yield more accurate localization. For more realistic evaluation, the enhanced localization algorithms are examined in different environmental noises.
Keywords:
Location ; Wireless Sensor Network ; Soft Computation

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