An underwater acoustic communications scheme with inherent scale diversity for multiple users
OCEANS 2013 MTS/IEEE - San Diego: An Ocean in Common
IEEE Computer Society
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Please cite this item using this persistent URLhttp://hdl.handle.net/11693/28068
Wideband underwater acoustic communication channels can cause undesirable multipath and Doppler scaling distortions to propagating acoustic signals. In this paper, we propose to exploit a time-scale canonical representation for wideband time-varying channels to achieve joint multipath-scale diversity. We design a signaling scheme with hyperbolic time-frequency signatures that is matched to the underwater acoustic environment to achieve scale diversity. The signaling scheme, combined with code-division multiple-access, is extended to multiple user transmission to improve multiuser detection performance, as demonstrated with simulations. © 2013 MTS.
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