NDLI: A Probabilistic Acknowledgment Mechanism for Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Blagojevic, M. Nabi, M. Geilen, M. Basten, T. Hendriks, T. Steine, M.
Copyright Year	2011
Abstract	The inherently unreliable communication infrastructure compel WSN protocols to employ error control mechanisms. Traditionally, error control is achieved by a retransmission scheme using acknowledgment mechanisms. WSN architectures are severely resource constrained and the additional energy expense of transmitting error control messages can seriously degrade network lifetime. In this paper, we analyze performance of error control schemes for the case of point-to-multipoint communication. An explicit acknowledgment mechanism may provide for reliable communication, but has two major drawbacks: 1) the over head is significant for small data messages, and 2) in case of asymmetrical communication links, multi-hop dissemination of acknowledgments is required. As an alternative to such explicit acknowledgment schemes we propose the use of probabilistic acknowledgments. In this probabilistic scheme, a sender estimates the probability that a message has been successfully delivered, based on information about the quality of the radio channel. A message is then retransmitted until the probability of successful delivery reaches a defined threshold value. Network capacity available for error control can be distributed prudently among all information items to be disseminated, possibly taking into account different application requirements. We formulate are transmission control strategy which results in minimal latency and maximal message delivery ratio.
Starting Page	63
Ending Page	72
File Size	273695
Page Count	10
File Format	PDF
ISBN	9781457711725
e-ISBN	9780769545097
DOI	10.1109/NAS.2011.38
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-28
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Measurement Wireless sensor networks Protocols gossiping point-to-multipoint error control Receivers wireless sensor network retransmission control Probabilistic logic Error correction Automatic repeat request
Content Type	Text
Resource Type	Article

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