A multi-hop reverse localization scheme for underwater wireless sensor networks

A reverse localization scheme (RLS) assumes that node´s communication ability is so powerful that it can communicate with surface anchor nodes directly. However, this assumption is hard to be satisfied when the monitoring area is deep. In order to overcome RLS´s drawback, this paper proposes a multi-hop reverse localization scheme (MRLS) for underwater wireless sensor networks (UWSNs). For MRLS, the routing problem and the localization problem have been solved together. Simulation results show than MRLS achieves much larger localization coverage than RLS while keeping a proper level of localization error and the communication overhead in deep water environment and MRLS´s performance is not worse than RLS in shallow water environment.