Scheduling for Uncertain Data Broadcast in Mobile Networks |
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Authors: | XU Hua-jie LI Guo-hui HU Xiao-ming YU Yan-wei |
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Institution: | 1. School of Computer and Information, Shanghai Second Polytechnic University, Shanghai 201209, China 2. School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China 3. School of Software Engineering, University of Science and Technology of China, Suzhou 215123, China |
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Abstract: | With the increasing popularity of wireless sensor network and GPS (global positioning system) , uncertain data as a new type of data brings a new challenge for the traditional data processing methods. Data broadcast is an effective means for data dissemination in mobile networks. In this paper, the definition of the mean uncertainty ratio of data is presented and a broadcasting scheme is proposed for uncertain data dissemination. Simulation results show that the scheme can reduce the uncertainty of the broadcasted uncertain data effectively at the cost of a minor increase in data access time, in the case of no transmission error and presence of transmission errors. As a result, lower uncertainty of data benefits the qualities of the query results based on the data. |
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Keywords: | Mobile networks Uncertain data Broadcast Scheduling |
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