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We study the problem of information brokerage in sensor networks, where information consumers (sinks, users) search for data acquired by information producers (sources). In-network storage such as geographical hash table (GHT) has been proposed to store data at rendezvous nodes for consumers to retrieve. In this paper, we propose a double rulings scheme which stores data replicas on a curve instead of one or multiple isolated sensors. The consumer travels along another curve which is guaranteeddoi:10.1145/1161089.1161122 dblp:conf/mobicom/SarkarZG06 fatcat:3bmjj2xpybc6fdyhbd62ynrf5e