Updated data dissemination methods for updating old replicas in ad hoc networks |
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Authors: | Hideki Hayashi Takahiro Hara Shojiro Nishio |
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Affiliation: | (1) Department of Multimedia Engineering, Graduation School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan |
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Abstract: | In this paper, we propose two updated data dissemination methods to not only reduce the number of accesses to old replicas, but also to improve the data accessibility in ad hoc networks where data items are updated regularly. In the first method, when a mobile host updates a data item, it disseminates the updated data item after the flooding of with invalidation reports. In the second method, two newly connected mobile hosts disseminate updated data items with each other after the flooding with invalidation reports. |
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Keywords: | Ad hoc networks Replica allocation Data accessibility Data update Mobile computing environment |
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