Print Email Facebook Twitter Underwater acoustic communication using Doppler-resilient orthogonal signal division multiplexing in a harbor environment Title Underwater acoustic communication using Doppler-resilient orthogonal signal division multiplexing in a harbor environment Author Ebihara, T. (University of Tsukuba) Leus, G.J.T. (TU Delft Signal Processing Systems) Ogasawara, Hanako (National Defense Academy) Date 2018 Abstract Underwater acoustic (UWA) channels are one of the historical mobile ultrawideband channels characterized by large delay and Doppler spreads, but reliable UWA communication remains challenging. Here we performed an initial demonstration of the Doppler-resilient orthogonal signal division multiplexing (D-OSDM) technique in an actual sea environment. D-OSDM spreads data symbols in both time and frequency with guardbands to exploit the time and frequency diversity of UWA channels. The experiment was performed in a challenging scenario: the transmitter was fixed on a floating pier, and the receiver was mounted on a moving remote-controlled boat. The harbor UWA channel had a delay spread of 50 ms and a Doppler spread of up to 4.5 Hz, in the presence of additive Gaussian noise, and the combination of two Rayleigh fading models (a two-path model without Doppler spread and a multi-path model with Doppler spread) was able to successfully model the actual environment. Our results also confirmed that a UWA communication link using D-OSDM will deliver excellent reliability even for a harbor UWA channel with a mobile receiver; D-OSDM achieves better communication quality compared to other communication schemes in both simulations and experiments. Subject Delay spreadDoppler spreadUnderwater acoustic communication To reference this document use: http://resolver.tudelft.nl/uuid:5b6ea03b-f432-4134-9640-bba03389bb94 DOI https://doi.org/10.1016/j.phycom.2018.01.001 Embargo date 2018-10-31 ISSN 1874-4907 Source Physical Communication, 27, 24-35 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 T. Ebihara, G.J.T. Leus, Hanako Ogasawara Files PDF 1_s2.0_S1874490717301052_main.pdf 2.32 MB Close viewer /islandora/object/uuid:5b6ea03b-f432-4134-9640-bba03389bb94/datastream/OBJ/view