J4 ›› 2013, Vol. 40 ›› Issue (1): 53-57+86.doi: 10.3969/j.issn.1001-2400.2013.01.010

• Original Articles • Previous Articles     Next Articles

Iterative receiver algorithm for underwater acoustic communications

ZHAO Liang;GE Jianhua   

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China)
  • Received:2011-10-29 Online:2013-02-20 Published:2013-03-28
  • Contact: ZHAO Liang E-mail:zhl@xidian.edu.cn

Abstract:

Based on the MMSE frequency domain equalizer, channel estimator, and convolutional decoding, an iterative receiver in the time-frequency domain(TFD) for SC underwater acoustic point to point communications is developed. This iterative procedure can reduce the calculation complexity of equalization using frequency domain processing and obtain better performance using less receiving elements. Finally, we use the sound speed profile(SSP) measured in the lake and finite-element ray tracing(Bellhop) to simulate the underwater channel to verify the performance of the proposed receive algorithms.

Key words: underwater acoustic communication networks, single carrier(SC), frequency domain equalization(FDE), iterative receiver, convolutional codes

CLC Number: 

  • TN929.3