Advantages of a TDMA based, energy-efficient, self-organizing MAC protocol for WSNs

L.F.W. van Hoesel, T. Nieberg, H.J. Kip, P.J.M. Havinga

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

53 Citations (Scopus)
68 Downloads (Pure)


This paper presents EMACs, a medium access protocol especially designed for wireless sensor networks. The medium access protocol consists of a fully distributed and self-organizing TDMA scheme, in which each active node periodically listens to the channel and broadcasts a short control message. This control message is needed for medium access operation and is also used to piggy bag various types of information at low energy costs. Information in the control message is used to create a maximal independent set of nodes. This set of nodes creates a connected network and nodes in the set are active, while other nodes are passive and save energy by exploiting the infrastructure created by the connected network. The presented approach is compared in simulation with the SMAC protocol (a medium access protocol with coordinated adaptive sleeping) in a realistic multi-hop network setup where sensor reading are transported to a specific node and routes are established using the dynamic source routing protocol. The EMACs protocol is able to extend the network lifetime 30% to 55% compared to SMAC in a static network topology and in a dynamic network topology, EMACs prolongs the network lifetime with a factor 2.9 to 4.2.
Original languageEnglish
Title of host publicationIEEE 59th Vehicular Technology Conference, VTC 2004-Spring
Place of PublicationLos Alamitos, CA
Number of pages5
ISBN (Print)0-7803-8255-2
Publication statusPublished - 2004
EventIEEE 59th Vehicular Technology Conference, Spring 2004 - Milan, Italy
Duration: 17 May 200419 May 2004
Conference number: 59

Publication series

NameIEEE Vehicular Technology Conference (VTC)
ISSN (Print)1550-2252


ConferenceIEEE 59th Vehicular Technology Conference, Spring 2004
Abbreviated titleVTC Spring 2004


  • EC Grant Agreement nr.: FP5/34734
  • CAES-PS: Pervasive Systems


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