Zhou, M.Zhang J.J.Papandreou-Suppappola, A.Duman, Tolga M.2016-02-082016-02-082013http://hdl.handle.net/11693/28068Date of Conference: 23-27 Sept. 2013Wideband 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.EnglishMultiuser detectionSignal processingUnderwater acousticsAcoustic environmentAcoustic signalsCanonical representationsDetection performanceMultiple userTime frequencyTime varying channelUnderwater acoustic communicationsOceanographyConference Paper10.23919/OCEANS.2013.6741369