A range-angle based self-localization scheme for MUANs

Mobile Underwater Acoustic Networks (MUANs) is currently a enabling technology for a wide range of applications. However, the self-localization of mobile nodes is difficult. In this paper, we propose a range-angle based self-localization scheme for MUANs. Each mobile node only communications with the anchor node which sends localization message and mobility model to the network. Ordinary nodes can get the range and angle between itself to anchor, then obtain the relative coordinates. Besides, with the mobility model, other ordinary nodes can estimate the original positions and predict the track information. In the proposed scheme, Firstly, It does not need to localize periodically. Secondly, only anchor needs GPS (Global Positioning System) receiver and self-guide system, other nodes can get their positions by communicating with the anchor. The proposed scheme can decrease both the cost and the communication traffic which can be used well in the underwater environment.