Abstract
In this paper, a low-complexity turbo-detection scheme is proposed for single-carrier multiple-input-multiple-output (MIMO) underwater acoustic (UWA) communication systems that employ low-density parity-check (LDPC) channel coding. The proposed iterative soft-decision feedback equalization (SDFE) algorithm offers a novel approach to combat error propagation by utilizing the past soft decisions to mitigate InterSymbol interference. In addition, we utilize an iterative data detection and channel estimation scheme to reduce the pilot overhead used in the data communication system. Performance of the proposed detection scheme is demonstrated through extensive communication data from two undersea experiments. The results show that the proposed SDFE algorithm provides robust detection for MIMO UWA communications with different modulations and different symbol rates, at different transmission ranges. © 2013 IEEE.
Recommended Citation
A. Rafati et al., "Soft-decision Feedback Turbo Equalization for Ldpc-coded Mimo Underwater Acoustic Communications," IEEE Journal of Oceanic Engineering, vol. 39, no. 1, pp. 90 - 99, article no. 6479709, Institute of Electrical and Electronics Engineers, Jan 2014.
The definitive version is available at https://doi.org/10.1109/JOE.2013.2241933
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Minimum mean square error (MMSE); multiple-input-multiple-output (MIMO); soft-decision feedback equalizer (SDFE); turbo equalization; underwater acoustic (UWA) communications
International Standard Serial Number (ISSN)
0364-9059
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2014
Comments
National Science Foundation, Grant 1231848