In this paper, we study a Wireless Passive Sensor Network (WPSN) that employs binary coded differential delay line surface acoustic wave (SAW) devices to monitor temperature in a harsh conditioned environment. The sensors are individually addressed by different reflector patterns. The number of sensors in the system is related to the coded reflectors pattern length which itself is limited by the size constraint of sensors. We propose a new sectorized system model for the WPSN by utilizing a phased circular antenna array to increase the number of sensors in the system that yields higher sensing spatial accuracy. Moreover, the sensing accuracy is further improved by a new two-step detection procedure that purifies the response signal and removes the interference of undesired sensors.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Interference reduction in Wireless Passive Sensor Networks using directional antennas


    Contributors:
    Razi, Abolfazl (author) / Abedi, Ali (author)


    Publication date :

    2011-06-01


    Size :

    1272591 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





    A Localization Method Using Rotary Antennas in Wireless Sensor Networks

    Li, B. / Wang, W. / Yin, Q. et al. | British Library Online Contents | 2011


    Multipath routing in ad hoc networks using directional antennas

    Yang Li, / Hong Man, / Jin Yu, et al. | IEEE | 2004


    Interference and Intrusion in Wireless Sensor Networks

    OMahony, George D. / Curran, James T. / Harris, Philip J. et al. | IEEE | 2020