2nd International ICST Conference on Autonomic Computing and Communication Systems

Research Article

MWM: A Map-based World Model for Wireless Sensor Networks

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  • @INPROCEEDINGS{10.4108/ICST.AUTONOMICS2008.4523,
        author={Abdelmajid Khelil and Faisal Karim Shaikh and Brahim Ayari and Neeraj Suri},
        title={MWM: A Map-based World Model for Wireless Sensor Networks},
        proceedings={2nd International ICST Conference on Autonomic Computing and Communication Systems},
        publisher={ICST},
        proceedings_a={AUTONOMICS},
        year={2010},
        month={5},
        keywords={Wireless Sensor Networks Event Detection Monitoring},
        doi={10.4108/ICST.AUTONOMICS2008.4523}
    }
    
  • Abdelmajid Khelil
    Faisal Karim Shaikh
    Brahim Ayari
    Neeraj Suri
    Year: 2010
    MWM: A Map-based World Model for Wireless Sensor Networks
    AUTONOMICS
    ICST
    DOI: 10.4108/ICST.AUTONOMICS2008.4523
Abdelmajid Khelil1,*, Faisal Karim Shaikh1,*, Brahim Ayari1,*, Neeraj Suri1,*
  • 1: Technische Universität Darmstadt Dependable, Embedded Systems and Software Group, Hochschulstr. 10, 64289 Darmstadt, Germany Tel. +49 6151 16{3414|3711|7066|3513}, Fax. +49 6151 16 4310
*Contact email: khelil@informatik.tu-darmstadt.de, fkarim@informatik.tu-darmstadt.de, brahim@informatik.tu-darmstadt.de, suri@informatik.tu-darmstadt.de

Abstract

A prominent functionality of a Wireless Sensor Network (WSN) is environmental monitoring. For this purpose the WSN creates a model for the real world by using abstractions to parse the collected data. Being cross-layer and application-oriented, most of WSN research does not allow for a widely accepted abstraction. A few approaches such as database-oriented and publish/subscribe provide acceptable abstractions by reducing application dependency and hiding communication details. Unfortunately, these approaches ignore the spatial correlation of sensor readings and still address single sensor nodes. In this work we present a novel approach based on a ``world model' that exploits the spatial correlation of sensor readings and represents them as a collection of regions called maps. Maps are a natural way for the presentation of the physical world and its physical phenomena over space and time. Our Map-based World Model (MWM) abstracts from low-level communication issues and supports general applications by allowing for efficient event detection, prediction and queries. In addition our MWM unifies the monitoring of physical phenomena with network monitoring which maximizes its generality. Using two case studies we highlight the simplicity and also the versatility of the proposed architecture. From our approach we deduce a general modeling and design methodology for WSNs.