A Node-to-Node Location Verification Method

In this paper, we study the problem of location claim verification of a mobile node in a wireless network. Existing verification methods rely primarily on cooperative approaches, which require the cooperation of several detecting nodes for the verification of a location claim from a target node. These methods all suffer from one or both of the drawbacks: 1) not able to cope with a sparse network situation and 2) the design being based on a particular measurement technique. To remedy the drawbacks, we propose a general location verification scheme. It employs a node-to-node approach for location verification and could use different measurement techniques; moreover, it supports location verification in sparse networks. The proposed verification scheme has been shown to be able to achieve satisfactory performance via extensive real-world Global-Positioning-System-based wireless sensor network experiments.