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Locating mobile users and devices efficiently is a critical operation in cellular networks. This is done using a combination of location update (by the mobile) and paging (by the network). The paging scheme determines how and where to search for a mobile user given the latest location update information from that user. This paper, considers how to increase the efficiency of the paging scheme. Much previous work has relied on simulation or modeling to design and evaluate the performance of proposed paging schemes. The paper takes a different, data-driven approach in how it design and evaluate the solution. Specifically, it mines more than 300 million call records from a large cellular operator to characterize user mobility and create mobility profiles.

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Format:PDFSize:452 KB
Date:Sep 2007
Pages:12

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