Wireless Personal Communications

, Volume 43, Issue 4, pp 1625–1631

PECAP: Priority-Based Delay Alleviation Algorithm for IEEE 802.15.4 Beacon-Enabled Networks

  • Joseph Jeon
  • Jong Wook Lee
  • Hyung Seok Kim
  • Wook Hyun Kwon
Article

DOI: 10.1007/s11277-007-9331-y

Cite this article as:
Jeon, J., Lee, J.W., Kim, H.S. et al. Wireless Pers Commun (2007) 43: 1625. doi:10.1007/s11277-007-9331-y

Abstract

A new priority-based algorithm for IEEE 802.15.4 beacon-enabled networks is proposed in order to alleviate an end-to-end delay while maintaining energy efficiency. In this paper, the active period is temporally increased to reduce the sleep delay that makes up a large portion of the end-to-end delay. Nodes having high-priority packets request the coordinator to execute an extended contention access period by sending a priority toning signal. The simulation results show that the proposed algorithm alleviates the end-to-end delay of high priority packets.

Keywords

IEEE 802.15.4 Priority CAP delay 

Copyright information

© Springer Science + Business Media LLC 2007

Authors and Affiliations

  • Joseph Jeon
    • 1
  • Jong Wook Lee
    • 1
  • Hyung Seok Kim
    • 2
  • Wook Hyun Kwon
    • 1
  1. 1.Seoul National UniversitySeoulSouth Korea
  2. 2.Sejong UniversitySeoulSouth Korea

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