Turbo equalization for single-carrier underwater acoustic communications

Author

Zheng, Yahong Rosa ; Jingxian Wu ; Chengshan Xiao

Volume

53

Issue

11

fYear

2015

fDate

11/1/2015 12:00:00 AM

Firstpage

79

Lastpage

87

Abstract

Recent research in underwater acoustic communications has taken advantage of MIMO technologies to achieve reliable communication with 10-100 times increase of data rate in comparison to traditional systems. The powerful turbo equalization and FEC coding techniques enable both single-carrier modulation and OFDM systems to combat triply selective UWA channels. This article reviews the time-domain and frequency-domain turbo equalizer schemes for MIMO SCM systems. Low-complexity techniques are presented with both turbo linear equalizers and turbo soft decision feedback equalizers in both the time and frequency domains. Although results are shown specifically for UWA channels, these turbo equalizer techniques are also suitable for terrestrial RF communication systems.

Keywords

MIMO communication; decision feedback equalisers; forward error correction; frequency-domain analysis; time-domain analysis; underwater acoustic communication; FEC coding techniques; MIMO SCM systems; MIMO technologies; OFDM systems; frequency-domain turbo equalizer schemes; single-carrier modulation; terrestrial RF communication systems; time-domain turbo equalizer schemes; triply selective UWA channels; turbo equalization; turbo linear equalizers; turbo soft decision feedback equalizers; underwater acoustic communications; Channel estimation; Decision feedback equalizers; Decoding; MIMO; OFDM; Time-domain analysis; Underwater acoustics; Underwater communication;

fLanguage

English

Journal_Title

Communications Magazine, IEEE

Publisher

ieee

ISSN

0163-6804

Type

jour

DOI

10.1109/MCOM.2015.7321975

Filename

7321975