Iterative Reception for Acoustic Underwater MIMO Communications

Author

Nordenvaad, Magnus Lundberg ; Öberg, Tommy

Author_Institution

Swedish Defence Res. Agency, Stockholm

fYear

2006

fDate

18-21 Sept. 2006

Firstpage

1

Lastpage

6

Abstract

This paper presents a soft input/soft output linear equalizer for Alamouti encoded MIMO signals. The derived structure allows for simultaneous equalization of MIMO channels and decoding of Alamouti coded signals. The equalizer/decoder is here used within the turbo equalization framework to exploit the complex and rich characteristics of the acoustic underwater channel. Such schemes can operate ate very low signal-to-noise ratio (SNR) levels enabling high transmission rates over long distances. We investigate the viability of the technique by using a simulation example and by studying its behavior for a real scenario, using data collected in the Baltic Sea

Keywords

data acquisition; geophysical signal processing; underwater acoustic communication; Alamouti coded signals; Alamouti encoded MIMO signals; Baltic Sea; MIMO communications; Multiple-Input-Multiple-Output; acoustic underwater channel; data collection; iterative reception; signal-to-noise ratio; soft input-soft output linear equalizer; turbo equalization framework; Doppler effect; Equalizers; Iterative decoding; MIMO; Receivers; Signal to noise ratio; Transceivers; Underwater acoustics; Underwater communication; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2006

Conference_Location

Boston, MA

Print_ISBN

1-4244-0114-3

Electronic_ISBN

1-4244-0115-1

Type

conf

DOI

10.1109/OCEANS.2006.307060

Filename

4098879