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Channel-aware energy efficient transmission strategies for large wireless sensor networks
journal contribution
posted on 2010-07-01, 00:00 authored by H Jeon, Jinho ChoiJinho Choi, H Lee, J HaWe propose a channel-aware type-based multiple access (TBMA) scheme for longer lifetime of WSNs. In an effort to minimize data transmission, the proposed scheme allows a set of sensors to be opportunistically activated in TBMA when their channel gains are higher than a threshold broadcasted by the fusion center. In each transmission, the activated sensors control their transmit power in a way to maximize an error exponent of the detection error performance. We analyze the DEPs of the proposed scheme and show that it provides significant energy saving as compared to the random selection scheme especially in the low signal-to-noise ratio regime where most of power-limited sensors are working.
History
Journal
IEEE signal processing lettersVolume
17Issue
7Pagination
643 - 646Publisher
IEEELocation
Piscataway, N.J.Publisher DOI
ISSN
1070-9908Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2010, IEEEUsage metrics
Keywords
Science & TechnologyTechnologyEngineering, Electrical & ElectronicEngineeringEnergy consumptionmultiuser diversitymultiple-access channelspower controltypeswireless sensor networksMULTIACCESS FADING CHANNELSDECENTRALIZED DETECTIONDISTRIBUTED DETECTIONACCESSFUSIONArtificial Intelligence and Image Processing