| Summary: | 碩士 === 東海大學 === 資訊工程學系 === 98 === Mobile ad hoc networks often deployed in many kinds of environments such as these places where are not easy to deploy infrastructure. The nodes in the network are unattended and easy be attacked because of congenital weak physical protection. Mobile ad hoc networks are particularly vulnerable to Denial of Service attacks. Flooding denial of service attacks are new and powerful attacks against on-demand Ad Hoc routing protocols. At present, the single scheme proposed to resist such attack is Flooding Attack Prevention proposed in 2005. And another scheme to resist this kind of attacks was proposed in 2006 by using Avoid Mistaken Transmission Table. In this paper, we present a new and more efficient solution to inhibit flooding attack in mobile ad hoc networks. In our scheme, legal nodes can use Priority and Trust Value and Neighbor Nodes List Table to distinguish attack nodes and refuse to forward packages for them, in this way flooding attacks can be defended. Through analysis, we show that our scheme can inhibit flooding attacks at less cost and is more efficient.
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