A demand-oriented information retrieval method on MANET

IR HANDLE Open Access

Abstract

In urban areas including shopping malls and stations with many people, it is important to utilize various infor- mation which those people have obtained. In this paper, we propose a method for information registration and retrieval in MANET which achieves small communication cost and short response time. In our method, we divide the whole ap- plication field into multiple sub-areas and classify records into several categories so that mobile terminals in an area holds records with a category. Each area is associated with a category so that the number of queries for the category becomes the largest in the area. Thus, mobile users search records with a certain category by sending a query to nodes in the particular area using existing protocol such as LBM (Location-Based Multicast). Through simulations suppos- ing actual urban area near Osaka station, we have con- firmed that our method achieves practical communication cost and performance for information retrieval in MANET.

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