title: Time reversal acoustic communication for multiband transmission.
abstract: In this letter, multiband acoustic communication is proposed to access a relatively wide frequency band. The entire frequency band is divided into multiple separated sub-bands, each of which is several kilohertz in width. Time reversal decision feedback equalizers are used to compensate for inter-symbol interference at each sub-band. The communication scheme was demonstrated in a shallow water acoustic experiment conducted in Kauai, Hawaii during the summer of 2011. Using quadrature phase-shift keying signaling at four sub-bands over the frequency band of 10-32 kHz, a data rate of 32 k bits/s was achieved over a 3 km communication range.
authors.affiliation: College of Earth, Ocean, and Environment, University of Delaware, 114 Robinson Hall, Newark, Delaware 19716, USA. ajsong@udel.edu
authors.forename: Aijun
authors.initials: A
authors.lastname: Song
authors.forename: Mohsen
authors.initials: M
authors.lastname: Badiey