Energy efficient scheduling with QoS guarantee for IEEE 802.16e broadband wireless access networks

Shih Chang Huang*, Rong Hong Jan, Chien Chen

*Corresponding author for this work

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

31 Scopus citations

Abstract

This paper proposes three energy efficient scheduling approaches for 802.16e broadband wireless networks. Instead of considering a single Mobile Subscriber Station (MSS) as most of the current researchers do, multiple MSSs are considered in our work. The constant bit rate traffic with QoS delay constraint is considered in this paper. The proposed approaches address both energy efficiency and bandwidth utilization. We reuse the idle fragmentation of the allocated OFDM frames to balance power saving and bandwidth utilization. Simulation results show that our proposed approaches benefit with more sleep time and higher bandwidth utilization. Furthermore, we give a QoS scheduling mechanism to find the maximum sleeping time for single MSS, called Minimum Wakeup Time (MWT) scheduler. Even though we don't know whether exists a feasible scheduling to satisfy all MSSs with MWT, it will serve as an upper bound for the power-saving scheduling in IEEE 802.16e.

Original languageEnglish
Title of host publicationIWCMC 2007
Subtitle of host publicationProceedings of the 2007 International Wireless Communications and Mobile Computing Conference
Pages547-552
Number of pages6
DOIs
StatePublished - 14 Dec 2007
EventIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference - Honolulu, HI, United States
Duration: 12 Aug 200716 Aug 2007

Publication series

NameIWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference

Conference

ConferenceIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference
CountryUnited States
CityHonolulu, HI
Period12/08/0716/08/07

Keywords

  • 802.16e
  • Bandwidth utilization
  • Energy efficient scheduling
  • QoS

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