Publications:Selecting back off algorithm in active RFID CSMA/CA based medium-access protocols

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Title Selecting back off algorithm in active RFID CSMA/CA based medium-access protocols
Author Björn Nilsson and Lars Bengtsson and Bertil Svensson
Year 2008
PublicationType Conference Paper
Journal
HostPublication International Symposium on Industrial Embedded Systems, 2008. SIES 2008
DOI http://dx.doi.org/10.1109/SIES.2008.4577714
Conference Third International Symposium on Industrial Embedded Systems, June 11-13, 2008, Montpellier-Le Grande Motte, France
Diva url http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239182
Abstract Active radio frequency identification (A-RFID) is a technology where the tags (transponders) carry an on board energy source for powering the radio, processor circuits, and sensors. Besides offering longer working distance between RFID-reader and tag than passive RFID, this also enables the tags to do sensor measurements, calculations and storage even when no RFID-reader is in the vicinity of the tags. In this paper we study the effect on tag energy cost and read out delay incurred by some typical back-off algorithms (constant, linear, and exponential) used in a contention based CSMA/CA (carrier sense multiple access/collision avoidance) protocol for A-RFID communication.