| Publisher | University of Cincinnati | ||
|---|---|---|---|
| Format | 223.6KB PDF | Date added | 27 Aug 2005 |
| Topics | Data Compression, Network Security, Mobile - Wireless Communications | ||
| Downloads | 49 | ||
This paper proposes a method for data compression and its subsequent regeneration using a polynomial regression technique. The approximate data received over the considered area by fitting it to a function and communicate this by passing only the coefficients that describe the function. This paper extends the previous algorithm TREG to consider non-complete aggregation trees. The proposed algorithm DUMMYREG is run at each parent node and uses information present in the existing child to construct a complete binary tree. In addition to obtaining values in regions devoid of sensor nodes and reducing communication overhead, this new approach further reduces the error when the readings are regenerated at the sink.
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