Title page for etd-0613112-110745


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URN etd-0613112-110745
Author Ping-Hsien Ho
Author's Email Address No Public.
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Department Electrical Engineering
Year 2011
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title An Enhanced Multi-Beacon Superframe Structure for IEEE 802.15.4 Wireless Personal Area Networks
Date of Defense 2012-06-02
Page Count 47
Keyword
  • greedy algorithm
  • IEEE 802.15.4
  • GTSs (guaranteed the time slots)
  • bandwidth waste
  • wireless personal area networks (WPANs)
  • multi-beacon superframe structure (MBS)
  • Abstract In an IEEE802.15.4 beacon-enabled wireless personal area network (WPAN), the PAN coordinator can allocate slots using contention free-GTSs (guaranteed the time slots) for admitted devices. However, due to fixed slot size, the bandwidth waste problem may arise. Hence, reference [6] proposed the multi-beacon superframe structure (MBS) to overcome this problem. However, in [6], the structure of sub-beacon intervals in a superframe is non-adaptive. Therefore, this thesis proposes an enhanced multi-beacon superframe structure (EMBS). In EMBS, a PAN coordinator employs the greedy SBI-allocation algorithm to adjust a superframe structure according to the traffic demand of admitted devices such that a superframe can consist of a number of different types of sub-beacon intervals (SBIs). Simulation results reveal that a WPAN using EMBS can attain higher bandwidth utilization than a WPAN using 802.15.4 or MBS.
    Advisory Committee
  • Jih-Ching Chiu - chair
  • Li-Chun Ko - co-chair
  • Kuo-Feng Chen - co-chair
  • Zi-Tsan Chou - advisor
  • Files
  • etd-0613112-110745.pdf
  • Indicate in-campus at 99 year and off-campus access at 99 year.
    Date of Submission 2012-06-13

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