A hybrid MAC with dynamic sleep scheduling for wireless sensor networks

Mohammad Arifuzzaman, Mitsuji Matsumoto

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this paper, we present Hybrid MAC (H-MAC), a novel low power with minimal packet delay medium access control protocol for wireless sensor networks (WSNs). H-MAC achieves high energy efficiency under wide range of traffic load. It ensures high channel utilization during high traffic load without compromising energy efficiency. H-MAC does it by using the strength of CSMA and TDMA approach with intelligence. The novel idea behind the H-MAC is that, it uses both the broadcast scheduling and link scheduling. Depending on the network loads the H-MAC protocol dynamically switches from broadcast scheduling to link scheduling and vice-versa in order to achieve better efficiency. Furthermore, H-MAC uses Request-To-Send (RTS), Clear-To-send (CTS) handshakes with methods for adapting the transmit power to the minimum level necessary to reach the intended neighbor with a given BER target or packet loss probability. Thus H-MAC reduces energy consumption by suitably varying the transmit power. The simulation results corroborate the theoretical idea, and show the efficiency of our proposed protocol.

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalJournal of the Institute of Image Electronics Engineers of Japan
Issue number2
Publication statusPublished - 2013


  • CSMA
  • Dynamic sleep scheduling
  • Energy consumption
  • Hybrid MAC
  • TDMA
  • Wireless sensor network

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering


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