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A Bluetooth Scatternet Reformation Algorithm based on Node Types  

Lee Han Wook (서울대학교 기계항공공학부)
Kauh S. Ken (서울대학교 기계항공공학부)
Publication Information
Journal of KIISE:Information Networking / v.32, no.1, 2005 , pp. 110-122 More about this Journal
Abstract
Bluetooth has been reputed as a wireless networking technology supplying ad-hoc networks between digital devices. In particular, bluetooth scatternet is a most essential part for dynamic ad-hoc networks. But past researches on bluetooth scatternet has hardly treated dynamic scatternet environment. In this paper, we proposed a scatternet reformation algorithm for the case that some nodes escape from the scatternet. The proposed algorithm is a general algorithm which can be applied to many types of bluetooth scatternet regardless of the topology. The proposed algorithm has short reformation time delay because the process has only page process (not including inquiry process ). The algorithm is operated based on Recovery Node Vector which is composed of Recovery Master and Recovery Slave. In this paper, we performed the real hardware experiments for evaluating the performance of the proposed algorithm. In that experiments, we measured the reformation time and reformation probability. In comparison with the case including inquiry process, the proposed algorithm had the improvement in reformation time delay and we obtained high success rate over 97%.
Keywords
Bluetooth; Scatternet; Bridge Node; Reformation Algorithm; Recovery Node Vector; Node Matrix; Node Weight;
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