Abstract
Location dependent information services can be characterized as the applications that coordinate a cell phone’s area or position with other data to give enhanced value of services to the client in the right place and at the right time from anywhere. Limited battery power and frequent disconnection due to moving environment prompts mobile distributed database to be a fertile land for many mobile databases researchers and specialists. New policies/protocols must be designed to efficiently handle the issued nearest neighbor queries. Our works involves design of new cache replacement policies, indexing, pre-fetching protocols with comparison of their performances from existing policies/protocols and reporting for future research directions.
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