Voronoi diagrams—a survey of a fundamental geometric data structure
ACM Computing Surveys (CSUR)
The lifting scheme: a construction of second generation wavelets
SIAM Journal on Mathematical Analysis
Dimensions: why do we need a new data handling architecture for sensor networks?
ACM SIGCOMM Computer Communication Review
Researches on scheme of pairwise key establishment for distributed sensor networks
WMuNeP '05 Proceedings of the 1st ACM workshop on Wireless multimedia networking and performance modeling
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Though several wavelet-based compressing solutions for sensor network have been proposed, those algorithms can only transform the regularly sample data. In this paper, we propose a distributed wavelet-based algorithm which can transform irregularly sample data. Considering the characteristics and location information of nodes in sensor networks, a new distributed data aggregation mode DDAM based on "subnet" is proposed firstly. On the basis of these new models, a novel wavelet-based irregularly sample data compression and data transform model DDWM is proposed for sensor networks. Theoretical analyses and simulation results show that, the above new methods have the good ability of approximation, and can compress the data efficiently and can reduce the amount of data greatly, So, it can prolong the lifetime of the whole network to a greater degree.