Single-carrier iterative frequency-domain equalization with soft decision feedback in shallow underwater acoustic communication

Author

Yuanbiao Ou ; ZhiQiang He ; Weipeng Jiang ; Sichuan Guo ; Kai Niu ; Yue Rong ; Caley, Michael ; Duncan, Alec J.

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2013

Firstpage

1

Lastpage

5

Abstract

This paper investigates a single-carrier iterative frequency-domain equalization (SC-IFDE) scheme for high-rate underwater acoustic (UA) communication systems. This scheme is based on the minimum mean-squared error (MMSE) criterion, and soft decision feedback is applied to improve the reliability of the equalizer decision. The proposed algorithm is applied to the data received during the UA communication experiment conducted in December 2012 in the Indian Ocean off Rottnest Island, Western Australia. It is demonstrated that using one transmitting transducer and one receiving hydrophone, the proposed SC-IFDE algorithm achieves an average of 3% uncoded bit-error-rate (BER) with quaternary phase shift keying (QPSK) modulated signals over a range of 1 km.

Keywords

equalisers; error statistics; hydrophones; iterative methods; least mean squares methods; quadrature phase shift keying; telecommunication network reliability; underwater acoustic communication; BER; Indian Ocean off Rottnest Island; MMSE criterion; QPSK; SC-IFDE scheme; Western Australia; equalizer decision reliability improvement; high-rate underwater acoustic communication systems; minimum mean-squared error criterion; quaternary phase shift keying modulated signals; receiving hydrophone; shallow underwater acoustic communication; single-carrier iterative frequency-domain equalization scheme; soft decision feedback; transmitting transducer; uncoded bit-error-rate; Facsimile; Filtering algorithms; Training; Underwater acoustic communication; iterative frequency-domain equalization; soft decision feedback;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing (ICICS) 2013 9th International Conference on

Conference_Location

Tainan

Print_ISBN

978-1-4799-0433-4

Type

conf

DOI

10.1109/ICICS.2013.6782890

Filename

6782890