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Wireless ad-hoc networks technologies share a common requirement: each node in the network has to know its current position at any time and to share this knowledge with other nodes in the network. An attacker can deliberately attack the network by claiming to be at a different location or by injecting erroneous location information to the used positioning system. As a result, there is a great need to provide a secure position verification system for the wireless ad-hoc networks. This paper proposes a new secure and efficient approach to detect any node that announce fake location information and warn the other nodes in the networks. The proposed approach is immune against the internal and the external attacks and uses the minimum communication overhead.
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