Mobile Information Systems / 2016 / Article / Tab 2

Research Article

LPPS: A Distributed Cache Pushing Based K-Anonymity Location Privacy Preserving Scheme

Table 2

Performance comparison.

Comparison LPPS The classical -anonymity strategy

Basic idea Push-based strategy Pull-based strategy
Privacy preservation Guarantee -anonymity Guarantee -anonymity
Service coverage ratio when No proxy, just query data directly
Cache hit ratio to when and No cache, just query data directly
Communication overhead of the classical -anonymity strategy in the best case Much higher than LPPS

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