An adaptive GTS allocation scheme for IEEE 802.15.4

Yu Kai Huang*, Ai Chun Pang, Hui-Nien Hung

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

100 Scopus citations


IEEE 802.15.4 is a new standard uniquely designed for low-rate wireless personal area networks. It targets ultra-low complexity, cost, and power for low-rate wireless connectivity among inexpensive, portable, and moving devices. IEEE 802.15.4 provides a Guaranteed Time Slots (GTS) mechanism to allocate a specific duration within a superframe for time-critical transmissions. This paper proposes an adaptive GTS allocation (AGA) scheme for IEEE 802.15.4 which considers low-latency and fairness. The scheme is designed based on the existing IEEE 802.15.4 medium access control protocol, and IEEE 802.15.4 devices can receive this AGA service without any modification. A simulation model and an analytical model are developed to investigate the performance of our AGA scheme. The numerical results show that the proposed scheme significantly outperforms the existing IEEE 802.15.4 implementation.

Original languageEnglish
Pages (from-to)641-651
Number of pages11
JournalIEEE Transactions on Parallel and Distributed Systems
Issue number5
StatePublished - 1 May 2008


  • Bandwidth allocation
  • Fairness
  • GTS
  • IEEE 802.15.4
  • Zigbee


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