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Automatic Beacon Alignment Schemes Based on Short Address for WPANs  

Jeon, Jong-Keun (한국항공대학교 정보통신공학과)
Yoon, Chong-Ho (한국항공대학교 정보통신공학과 응용네트워크 연구실)
Kim, Se-Han (한국전자통신연구원)
Abstract
There nay be collisions among beacons from several full function devices in IEEE 802.15.4 sensor networks. These collision of beacons may cause devices to lose time synchronization, and thus be unable to association. To solve this problem, the IEEE 802.15.4b defines a new Post Beacon Period(PBP), but it does not still alleviate the beacon collision problem. In this paper, we propose two automatic beacon alignment schemes that a node itself can decide its beacon start time using its short address that has been assigned during association. We also simulate and investigate our proposed automatic beacon collision avoidance schemes using NS-2 simulator.
Keywords
802.15.4; WPAN; Beacon; Short Address;
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  • Reference
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