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A Generic Localized Broadcast Framework in Mobile Ad Hoc Ubiquitous Sensor Networks
Hui XU Brian J. D'AURIOL Jinsung CHO Sungyoung LEE Byeong-Soo JEONG
IEICE TRANSACTIONS on Communications
Publication Date: 2007/12/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Ubiquitous Sensor Networks)
broadcast, localized efficient protocols, mobility prediction, mobile ad hoc ubiquitous sensor network,
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In this paper, we investigate the critical low coverage problem of position aware localized efficient broadcast in mobile ad hoc ubiquitous sensor networks and propose a generic framework for it. The framework is to determine a small subset of nodes and minimum transmission radiuses based on snapshots of network state (local views) along the broadcast process. To guarantee the accuracy of forward decisions, based on historical location information nodes will predict neighbors' positions at future actual transmission time and then construct predicted and synchronized local views rather than simply collect received "Hello" messages. Several enhancement technologies are also proposed to compensate the inaccuracy of prediction and forward decisions. To verify the effectiveness of our framework we apply existing efficient broadcast algorithms to it. Simulation results show that new algorithms, which are derived from the generic framework, can greatly increase the broadcast coverage ratio.