A replica allocation method adapting to topology changes in ad hoc networks

Authors:
Hideki Hayashi;Takahiro Hara;Shojiro Nishio
Affiliations:
Dept. of Multimedia Eng., Grad. Sch. of Information Science and Tech., Osaka Univ., Osaka, Japan;Dept. of Multimedia Eng., Grad. Sch. of Information Science and Tech., Osaka Univ., Osaka, Japan;Dept. of Multimedia Eng., Grad. Sch. of Information Science and Tech., Osaka Univ., Osaka, Japan
Venue:
DEXA'05 Proceedings of the 16th international conference on Database and Expert Systems Applications
Year:
2005

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Abstract

In ad hoc networks, data accessibility decreases due to network divisions. To solve this problem, it is effective that each mobile host creates replicas of data items held by others. In this paper, we assume an environment where mobility and access characteristics of mobile hosts have the locality and propose a method that locally relocates replicas just before a network division occurs.