Joint ICI and IBI cancelation for underwater acoustic MIMO-OFDM systems

Author

Beheshti, M. ; Omidi, M.J. ; Doost-Hoseini, A.M.

Author_Institution

Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Isfahan, Iran

fYear

2011

fDate

17-19 May 2011

Firstpage

1

Lastpage

1

Abstract

A time-domain equalizer (TEQ) is proposed for MIMO-OFDM transmission in underwater acoustic (UWA) channels that simultaneously exhibit large delay and doppler spreads. The aim of the equalizer is to jointly mitigate the intercarrier interference (ICI) and interblock interference (IBI). In this paper, the well known basis expansion model (BEM) is used to describe the UWA channel. Then, the equalizer is derived based on maximizing the signal-to-interference-plus-noise-ratio (SINR). The performance of the proposed approach is demonstrated by numerical simulations. Also, a previously proposed frequency-domain equalizer (FEQ) for communication over doubly selective radio channels is applied to UWA channel and its performance is compared to that of the proposed TEQ.

Keywords

Doppler effect; MIMO communication; OFDM modulation; interference suppression; numerical analysis; underwater acoustic communication; Doppler spreads; MIMO-OFDM transmission; basis expansion model; doubly selective radio channels; frequency-domain equalizer; interblock interference cancellation; intercarrier interference cancellation; numerical simulations; signal-to-interference-plus-noise-ratio; time-domain equalizer; underwater acoustic channels; MIMO-OFDM; Underwater acoustic channel; basis expansion model; equalization; interblock interference (IBI); intercarrier interference (ICI);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2011 19th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4577-0730-8

Type

conf

Filename

5955891