Energy-Efficient Flexible Beacon Scheduling Mechanism for Cluster-Tree Healthcare Systems

Haoru SU  Heungwoo NAM  Sunshin AN  

IEICE TRANSACTIONS on Communications   Vol.E94-B   No.9   pp.2480-2483
Publication Date: 2011/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.2480
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Information Communication Technology for Highly Reliable Human Health Care Services)
BAN,  healthcare system,  MAC,  beacon scheduling,  

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An Energy-efficient Flexible Beacon Scheduling (EFBS) mechanism is proposed to solve the beacon collision problem in cluster-tree healthcare systems. In EFBS, after clustering, BAN Coordinators perform power control. Then they are divided into groups and each group is assigned one contention-free time-slot. The duration of the beacon-only period is flexible. According to the simulation results, EFBS provides better performance than other beacon scheduling approaches.