Iterative Block Decision Feedback Equalizer with Soft Detection for Underwater Acoustic Channels

JING Lianyou; HE Chengbing; ZHANG Lingling; MENG Qingwei; HUANG Jianguo; ZHANG Qunfei

doi:10.11999/JEIT150669

Volume 38 Issue 4

Apr. 2016

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(4): 885-891

JING Lianyou, HE Chengbing, ZHANG Lingling, MENG Qingwei, HUANG Jianguo, ZHANG Qunfei. Iterative Block Decision Feedback Equalizer with Soft Detection for Underwater Acoustic Channels[J]. Journal of Electronics & Information Technology, 2016, 38(4): 885-891. doi: 10.11999/JEIT150669

Citation:

JING Lianyou, HE Chengbing, ZHANG Lingling, MENG Qingwei, HUANG Jianguo, ZHANG Qunfei. Iterative Block Decision Feedback Equalizer with Soft Detection for Underwater Acoustic Channels[J]. Journal of Electronics & Information Technology, 2016, 38(4): 885-891. doi: 10.11999/JEIT150669

Citation:

JING Lianyou, HE Chengbing, ZHANG Lingling, MENG Qingwei, HUANG Jianguo, ZHANG Qunfei. Iterative Block Decision Feedback Equalizer with Soft Detection for Underwater Acoustic Channels[J]. Journal of Electronics & Information Technology, 2016, 38(4): 885-891. doi: 10.11999/JEIT150669

PDF( 2260 KB)

Iterative Block Decision Feedback Equalizer with Soft Detection for Underwater Acoustic Channels

doi: 10.11999/JEIT150669 cstr: 32379.14.JEIT150669

1.
(School of Marine Science and Technology, Northwestern Polytechnical University, Xi&rsquo
2.
(Information and Navigation Institute, Air Force Engineering University, Xi&rsquo

Funds:

The National Natural Science Foundation of China (61471298, 61271415, 61401499)

Received Date: 2015-06-04
Rev Recd Date: 2015-12-25
Publish Date: 2016-04-19

Abstract

Abstract

In single-carrier modulation system with frequency domain equalization, Decision Feedback Equalizer with a Hybrid time-frequency structure (H-DFE) is attractive for its performance; the complexity is also significant, especially for very dispersive channels. Iterative Block Decision Feedback Equalizer with Hard Detection (HD-IBDFE) system performance degrades caused by errors in symbol decision and it needs to calculate the correlation factor of the transmitted and hard detected data. To solve these problems, Iterative Block Decision Feedback Equalizer with Soft Detection (SD-IBDFE) is introduced to improve the system performance. The receiver feedbacks the soft information of the equalizers output. The iterative channel estimation is adopted in order to deal with the time-varying underwater acoustic channels. Simulation results show that SD-IBDFE is superior to HD-IBDFE obviously for underwater acoustic channel. One underwater acoustic communication system is designed and tested in the lake. At a distance of 1.8 km with complex channel condition, the useful data rate of around 3000 bps is achieved with uncoded bit error rates10-3inlake experiment.

FullText(HTML)

References(25)

References

ZHENG Y R, XIAO C S, YANG T C, et al. Frequency- domain channel estimation and equalization for shallow- water acoustic communications[J]. Physical Communication, 2010, 3(1): 48-63. doi: 10.1016/j.phycom.2009.08.010.

XIA M L, ROUSEFF D, RITCEY J A, et al. Underwater acoustic communication in a highly refractive environment using SCFDE[J]. IEEE Journal of Oceanic Engineering, 2013, 29(3): 491-499. doi: 10.1109/JOE.2013.2257232.

FALCONER D, ARIYAVISITAKUL S L, BENYAMIN- SEEYAR A, et al. Frequency domain equalization for single-carrier broadband wireless systems[J]. IEEE Communications Magazine, 2002, 40(4): 58-66. doi: 10.1109 /35.995852.

BENVENUTO N and TOMASIN S. Iterative design and detection of a DFE in the frequency domain[J]. IEEE Transactions on Communications, 2005, 53(11): 1867-1875. doi: 10.1109/TCOMM.2005.858666.

BENVENUTO N, DINIS R, FALCONER D, et al. Single carrier modulation with nonlinear frequency domain equalization: an idea whose time has come again[J]. Proceedings of the IEEE, 2010, 98(1): 69-96. doi: 10.1109/ JPROC.2009.2031562.

AL-IESAWI S A, AHMED M S, and SALMAN T M. Iterative block DFE (IBDFE) and IC techniques based chip- level multiple access systems[C]. Electrical, Communication, Computer, Power, and Control Engineering International Conference 2013, Mosul, Iraq, 2013: 42-45. doi: 10.1109/ ICECCPCE.2013.6998768.

ASSUNO J, SILVA A, DINIS R, et al. IB-DFE-based receivers for MC-CDMA systems with interference alignment[C]. 2014 IEEE Symposium on Computers and Communication, Funcha, Portugal, 2014: 1-6. doi: 10.1109/ ISCC.2014.6912557.

张磊, 蒋伟, 项海格. 一种单载波频域均衡输出符号的软信息计算方法[J]. 电子与信息学报, 2008, 30(8): 1806-1809.

ZHANG Lei, JIANG Wei, and XIANG Haige. A soft output information calculation method for SC-FDE[J]. Journal of Electronics Information Technology, 2008, 30(8): 1806-1809.

ZHANG C, WANG Z C, PAN C Y, et al. Low-complexity iterative frequency domain decision feedback equalization[J]. IEEE Transactions on Vehicular Technology, 2011, 60(3): 1295-1301. doi: 10.1109/TVT.2011.2109017.

顾晨阳, 杨瑞, 盛文钦, 等. 单载波频域均衡系统中一种简化的IBDFE算法[J]. 电子学报, 2014, 42(9): 1699-1704. doi: 10.3969/j.issn.0372-2112.2014.09.006.

GU Chenyang, YANG Rui, SHENG Wenqin, et al. A simplification of IBDFE algorithm in single carrier frequency domain equalization system[J]. Acta Electronica Sinica, 2014, 42(9): 1699-1704. doi: 10.3969/j.issn.0372-2112.2014.09.006.

PEDROSA P, DINIS R, NUNES F, et al. Joint frequency domain equalisation and phase noise estimation for single- carrier modulations in doubly-selective channels[J]. IET Communications, 2015, 9(8): 1138-1146. doi: 10.1049/ iet-com.2014.0900.

PEDROSA P, DINIS R, and NUNES F. Joint equalization and phase drift compensation for the underwater acoustic channel[C]. IEEE Vehicular Technology Conference Fall, Vancouver, BC, Canada, 2014: 1-6. doi: 10.1109/VTCFall.2014. 6966029.

HE C B, HUANG J Q, ZHANG Q F, et al. Single carrier frequency domain equalizer for underwater wireless communication[C]. WRI International Conference on Communications and Mobile Computing, Kunming, China, 2009: 186-190. doi: 10.1109/CMC.2009.24.

何成兵, 黄建国, 孟庆微, 等. 基于扩频码的单载波迭代频域均衡水声通信[J]. 物理学报, 2013, 62(23): 234301. doi: 10.7498/aps.62.234301.

HE Chengbing, HUANG Jianguo, MENG Qingwei, et al. PN-based single carrier block transmission with iterative frequency domain equalization over underwater acoustic channels[J]. Acta Physica Sinica, 2013, 62(23): 234301. doi: 10.7498/aps.62.234301.

SUN H X, GUO Y H, KUAI X Y, et al. Iterative block DFE for underwater acoustic single carrier system[J]. China Communications, 2012, 9(7): 121-126.

张歆, 张小蓟. 水声信道中的迭代分组判决反馈均衡器[J]. 电子与信息学报, 2013, 35(3): 683-688. doi: 10.3724/SP. J.1146.2012.00948.

ZHANG Xin and ZHANG Xiaoji. Iterative block decision feedback equalization for underwater acoustic channels[J]. Journal of Electronics Information Technology, 2013, 35(3): 683-688. doi: 10.3724/SP.J.1146.2012.00948.

LAM C T, FALCONER D D, and DANILO-LEMOINE F. Iterative frequency domain channel estimation for DFT- precoded OFDM systems using in-band pilots[J]. IEEE Journal Selected Areas in Communications, 2008, 26(2): 348-358. doi: 10.1109/JSAC.2008.080211.

COELHO F, DINIS R, and MONTEZUMA P. Joint detection and channel estimation for block transmission schemes[C]. Military Communications Conference, San Jose, USA, 2010: 1765-1770. doi: 10.1109/MILCOM.2010.5680240.

HUANG G, NIX A, and ARMOUR S. DFT-Based channel estimation and noise variance estimation techniques for single-carrier FDMA[C]. IEEE Vehicular Technology Conference Fall 2010, Ottawa, Canada, 2010: 1-5. doi: 10.1109/VETECF.2010.5594158.

孟庆微, 黄建国, 何成兵, 等. 水声单载波分块传输中基于压缩感知的稀疏信道估计方法[J]. 北京邮电大学学报, 2012, 35(5): 14-17.

MENG Qiangwei, HUANG Jianguo, HE Chengbing, et al. Compressed sensing based sparse channel estimation method for underwater single carrier block transmission[J]. Journal of Beijing University of Posts and Telecommunications, 2012, 35(5): 14-17.

Relative Articles

Supplements(0)

Cited By

Proportional views