Collision-free downlink scheduling in the IEEE 802.15.4 network

Sangki Yun, Hyogon Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution


IEEE 802.15.4 is the Low-Rate Wireless Personal Area Network (LR-WPAN) standard that is suitable for wireless sensor networks and wireless home networks among others. The IEEE 802.15.4 is specifically designed for energy efficiency since many 802.15.4-compliant devices are expected to operate on battery. Because of inadequate design of the downlink frame transmission mechanism in the standard, however, 802.15.4 devices can waste their energy due to collisions even under modest downlink traffic in the network. In order to solve this problem, we propose a novel mechanism which evenly distributes the downlink frame transmissions and decimate collisions. It exploits the information already imbedded in the beacon frame, so it does not require modifications of the IEEE 802.15.4 standard. Our scheme significantly reduces the energy consumption of 802.15.4 WPAN devices under modest to heavy downlink traffic, while not adversely affecting the system performance under low utilization.

Original languageEnglish
Title of host publicationInformation Networking
Subtitle of host publicationTowards Ubiquitous Networking and Services - International Conference, ICOIN 2007, Revised Selected Papers
PublisherSpringer Verlag
Number of pages10
ISBN (Print)354089523X, 9783540895237
Publication statusPublished - 2008
Event21st International Conference on Information Networking, ICOIN 2007 - Estoril, Portugal
Duration: 2007 Jan 232007 Jan 25

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5200 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other21st International Conference on Information Networking, ICOIN 2007


  • 802.15.4
  • Battery
  • Downlink collision
  • Energy consumption
  • WPAN
  • ZigBee

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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