Underwater Acoustic Communication Using Multiple-Input Multiple-Output Doppler-Resilient Orthogonal Signal Division Multiplexing

Conference paper (2018)

Authors

Tadashi Ebihara University of Tsukuba

G.J.T. Leus Signal Processing Systems -

Hanako Ogasawara National Defense Academy

Research Group

Signal Processing Systems () (TU Delft)

DOI: https://doi.org/10.1109/OCEANSKOBE.2018.8559404

MIMO Underwater acoustic communication Delay spread Doppler spread

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http://resolver.tudelft.nl/uuid:cc4db266-7dee-4081-b3ee-0daeddf87c0a

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Published Date

2018

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Signal Processing Systems

Abstract

In this paper, we propose a novel underwater acoustic communication scheme that achieves energy and spectrum efficiency simultaneously by combining Doppler-resilient orthogonal signal division multiplexing (D-OSDM) and multiple-input multiple-output (MIMO) signaling. We present both the transmitter and receiver processing for MIMO D-OSDM. We evaluate the performance of MIMO D-OSDM in simulations with a large inter-symbol interference (60 symbols) and Doppler spread (maximum Doppler shift of 15 Hz). The simulation results show that MIMO D-OSDM achieves almost the same energy efficiency as normal D-OSDM while doubling the spectrum efficiency. We conclude that MIMO D-OSDM can become a viable technique that achieves reliable and effective UWA communication.

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