Anzeige
Erschienen in:
2005 | OriginalPaper | Buchkapitel
Adaptive Data Dissemination in Wireless Sensor Networks
verfasst von : Jian Xu, Jianliang Xu, Shanping Li, Qing Gao, Gang Peng
Erschienen in: Parallel and Distributed Processing and Applications
Verlag: Springer Berlin Heidelberg
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Recent years have witnessed growing research interest in wireless sensor networks. In the literature, three data storage strategies, i.e.,
local
,
data-centric
, and
index-centric
, have been proposed to answer one-shot queries originated from inside the network. Through careful analysis, we show in this paper that each of the three strategies respectively achieves the best performance in a certain range of query-rate to update-rate (Q2U) ratios. We therefore propose several adaptive schemes which periodically adjust the data storage and dissemination strategy in accordance with the Q2U ratio observed in the network. Experimental results demonstrate that in dynamic environments the proposed adaptive schemes substantially outperform the three basic strategies.