Privacy and Integrity Preserving Top k Query Processing for Two Tiered Sensor Networks in NS2
Privacy and Integrity Preserving Top k Query Processing for Two Tiered Sensor Networks in NS2
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Abstract:
The proposed approach proposes the first top-k query processing scheme to protect the privacy of sensor data and the integrity of query results. An index is built for each sensor collected data item using pseudo-random hash function and Bloom filters. The proposed work transverses the top k queries into toprange queries. To preserve integrity, the proposed work exploits a data partition algorithm to partition each data item into an interval and attach the partition information with the data.
