期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2013
卷号：4
期号：3
页码：308-313
语种：English
出版社：Ayushmaan Technologies
摘要：Mobile Ad-Hoc Networks (MANETS) have attracted a lot of attention dye to the popularity of mobile devices and the advances in wireless communication technologies.Data accessibility is often an important metric in a MANET.The mobility and resource constraints of mobile nodes may lead to network partitioning or performance degradation.Several data replication techniques have been proposed to minimize performance degradation. Most of them assume that all mobile nodes collaborate fully in terms of sharing their memory space. In reality, however, some nodes may selfishly decide only to cooperate partially, or not at all, with other nodes. These selfish nodes could then reduce the overall data accessibility in the network. Here, we examine the impact of selfish nodes in a mobile adhoc network from the perspective of replica allocation. We term this selfish replica allocation. In particular, we develop a selfish node detection algorithm that considers partial selfishness and novel replica allocation techniques to properly cope with selfish replica allocation. The conducted simulations demonstrate the proposed approach outperforms traditional cooperative replica allocation techniques in terms of data accessibility, communication cost, and average query delay.
关键词：Mobile Ad-Hoc Networks;Degree of Selfishness;Selfish Replica Allocation
