Next century challenges: scalable coordination in sensor networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Geography-informed energy conservation for Ad Hoc routing
Proceedings of the 7th annual international conference on Mobile computing and networking
Data Gathering Algorithms in Sensor Networks Using Energy Metrics
IEEE Transactions on Parallel and Distributed Systems
Dimensions: why do we need a new data handling architecture for sensor networks?
ACM SIGCOMM Computer Communication Review
Energy-Efficient Communication Protocol for Wireless Microsensor Networks
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
A wireless sensor network For structural monitoring
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
A wavelet transform for efficient consolidation of sensor relations with quality guarantees
Proceedings of the VLDB Endowment
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In this paper, we propose an algorithm for wavelet based spatio-temporal data compression in wireless sensor networks. By employing a ring topology, the algorithm is capable of supporting a broad scope of wavelets that can simultaneously explore the spatial and temporal correlations among the sensory data. Furthermore, the ring based topology is in particular effective in eliminating the “border effect” generally encountered by wavelet based schemes. We propose a “Hybrid” decomposition based wavelet transform instead of wavelet transform based on the common dyadic decomposition, since temporal compression is local and far cheaper than spatial compression in sensor networks. We show that the optimal level of wavelet transform is different due to diverse sensor network circumstances. Theoretically and experimentally, we conclude the proposed algorithm can effectively explore the spatial and temporal correlation in the sensory data and provide significant reduction in energy consumption and delay compared to other schemes.