Where academic tradition
meets the exciting future

You are here: TUCS > PUBLICATIONS > Publication Search > Synchronization of Low-Cost Di...

Synchronization of Low-Cost Distributed Spectrum Sensing Nodes for Multilateration-Based Geolocation

Stefan Grönroos, Kristian Nybom, jerker Björkqvist, Synchronization of Low-Cost Distributed Spectrum Sensing Nodes for Multilateration-Based Geolocation. In: Lee Pucker, John Glossner, Stephanie Hamill (Eds.), Proceedings of SDR-WinnComm 2015: Wireless Innovation Conference on Wireless Communications Technologies and Software Defined Radio, Wireless Innovation Forum Conference on Wireless Communications Technologies and Software Defined Radio, 223–229, The Wireless Innovation Forum, 2015.

Abstract:

In this work, we show how a distributed sensing network consisting of very low-cost nodes can also be used to locate radio transmitters without prior knowledge of which waveform is used. This information can aid in increasing location awareness
among cognitive radios, as well as provide assistance in locating offending transmitters. The low accuracy of the internal clocks
of these low-cost receivers as well as the geographical distribution of the nodes result in significant challenges regarding the synchronization of the receivers in order to position the source with adequate accuracy. In this paper, we synchronize the nodes to an arbitrary modulated RF signal, after which we calculate estimated time differences of arrival (TDOAs) to an unknown
transmitter. We describe the implementation as well as give results on measurement accuracy in various scenarios using a prototype network of nodes spread out in the city of Turku, Finland.

BibTeX entry:

@INPROCEEDINGS{inpGrNyBj15a,
  title = {Synchronization of Low-Cost Distributed Spectrum Sensing Nodes for Multilateration-Based Geolocation},
  booktitle = {Proceedings of SDR-WinnComm 2015:  Wireless Innovation Conference on Wireless Communications Technologies  and Software Defined Radio},
  author = {Grönroos, Stefan and Nybom, Kristian and Björkqvist, jerker},
  series = {Wireless Innovation Forum Conference on Wireless Communications Technologies and Software Defined Radio},
  editor = {Pucker, Lee and Glossner, John and Hamill, Stephanie},
  publisher = {The Wireless Innovation Forum},
  pages = {223–229},
  year = {2015},
  keywords = {Spectrum Sensing, Geo-location},
}

Belongs to TUCS Research Unit(s): Embedded Systems Laboratory (ESLAB)

Publication Forum rating of this publication: level 1

Edit publication