The Spanish Inquisition Protocol—Model based transmission reduction for wireless sensor networks

    Research output: Chapter in Book/Report/Conference proceedingChapter

    28 Citations (Scopus)
    231 Downloads (Pure)


    The Spanish Inquisition Protocol (SIP) reduces Wireless Sensor Network (WSN) energy cost by transmitting only unexpected information and is so-named because "nobody expects the Spanish Inquisition!" SIP extends prior Dual Prediction Scheme (DPS) algorithms that model phenomena at both node and sink. SIP's key advancement is that it transmits a state vector estimate rather than individual readings. SIP can be tuned according to the desired estimate accuracy, with lower desired accuracy typically leading to fewer transmitted packets. In simulation with real data, less than 5% of the samples needed to be transmitted to provide the sink with an accurate estimate of the sensor value (within 0.5°C, in the case of temperature). SIP also significantly outperforms prior DPS results when using the same data sets. In deployment on Telos motes, SIP shows similar performance to the simulations.
    Original languageEnglish
    Title of host publicationSensors, 2010 IEEE
    EditorsThomas Kenny, Garry Fedder
    ISBN (Print)9781424481682
    Publication statusPublished - 2010

    Bibliographical note

    Paper presented at the IEEE sensors 2010 conference, held -4 Nov, 2010, Hawaii.
    © 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


    • signalling protocols
    • wireless sensor networks


    Dive into the research topics of 'The Spanish Inquisition Protocol—Model based transmission reduction for wireless sensor networks'. Together they form a unique fingerprint.

    Cite this