The Spanish inquisition protocol - Model based transmission reduction for wireless sensor networks

Daniel Goldsmith*, James Brusey

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

25 Citations (Scopus)


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 publication2010 IEEE Sensors
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781424481682, 9781424481699, 9781424481682
ISBN (Print)9781424481705
Publication statusPublished - 2010
Event9th IEEE Sensors Conference 2010, SENSORS 2010 - Waikoloa, HI, United States
Duration: 1 Nov 20104 Nov 2010

Publication series

NameProceedings of IEEE Sensors
ISSN (Print)1930-0395
ISSN (Electronic)1930-0395


Other9th IEEE Sensors Conference 2010, SENSORS 2010
CountryUnited States
CityWaikoloa, HI

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