Abstract
In this paper, we proposed a novel Multiple Constraints Satisfaction Based Reliable Localization Algorithm for mobile Underwater Wireless Sensor Networks (UWSNs). In a typical application, e.g. the ocean battlefields, the localization process has been no doubt constantly restricted by several kinds of uncertainty, which lead to obvious degradation of localization reliability and accuracy, e.g. the confidence of reference information, the mobility of sensor nodes, the reliability of multi-hop localization link, etc. It implies a limit and an insufficiency of localization reliability. Thus, we transformed the reliable localization problem into a multiple Constraints Satisfaction Problem (CSP). In the CSP framework, we firstly integrated three kinds of constraints, i.e. confidence constraint, mobility constraint, and reliability constraint. Then game method has been utilized to deal with the CSP and determine the positions of underwater sensor nodes. Simulation results show that algorithm is effective and efficient.
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