Joint channel estimation and data detection on commercially available underwater acoustic modems

Author

Torrico, Marcia I. ; Ming Li ; Pados, Dimitris A.

Author_Institution

Dept. of Electr. Eng., State Univ. of New York at Buffalo, Buffalo, NY, USA

fYear

2014

fDate

7-10 April 2014

Firstpage

1

Lastpage

5

Abstract

In this paper, we describe and demonstrate for the first time in the literature a light-weight joint underwater acoustic channel estimation and data detection (JOCEDD) procedure. The procedure generates iteratively channel estimates and data decisions with guaranteed convergence. No pilot signaling is required (blind/unsupervised scheme), except for one-shot overall data frame sign/phase ambiguity resolution. The effectiveness of the proposed algorithm is demonstrated by field tests with SM-975 Teledyne-Benthos SMART modems. Experimental results show that the proposed JOCEDD procedure can efficiently recover transmitted data and significantly enhance reliability of underwater acoustic communications.

Keywords

channel estimation; modems; underwater acoustic communication; JOCEDD procedure; SM-975 Teledyne-Benthos SMART modems; commercially available underwater acoustic modems; data frame sign/phase ambiguity resolution; field tests; light-weight joint underwater acoustic channel estimation and data detection procedure; reliability enhancement; underwater acoustic communications; Channel estimation; Joints; Lakes; Modems; Underwater acoustics; Vectors; Adaptive algorithms; inter-symbol interference (ISI); iterative equalization; joint channel estimation and data detection (JOCEDD); multipath channel; underwater acoustic communications (UAC);

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2014 - TAIPEI

Conference_Location

Taipei

Print_ISBN

978-1-4799-3645-8

Type

conf

DOI

10.1109/OCEANS-TAIPEI.2014.6964325

Filename

6964325