Combined Hybrid DFE and CCK Remodulator for Medium-Range Single-Carrier Underwater Acoustic Communications
Joint Authors
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-15
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Information Technology and Computer Science
Abstract EN
Advanced modulation and channel equalization techniques are essential for improving the performance of medium-range single-carrier underwater acoustic communications.
In this paper, an enhanced detection scheme, hybrid time-frequency domain decision feedback equalizer (DFE) combined with complementary code keying (CCK) remodulator, is presented.
CCK modulation technique provides strong tolerance to intersymbol interference caused by multipath propagation in underwater acoustic channels.
The conventional hybrid DFE, using a frequency domain feedforward filter and a time domain feedback filter, provides good performance along with low computational complexity.
The error propagation in the feedback filter, caused by feedbacking wrong decisions prior to CCK demodulation, may lead to great performance degradation.
In our proposed scheme, with the help of CCK coding gain, more accurate remodulated CCK chips can be used as feedback.
The proposed detection scheme is tested by the practical ocean experiments.
The experimental results show that the proposed detection scheme ensures robust communications over 10-kilometre underwater acoustic channels with the data rate at 5 Kbits/s in 3 kHz of channel bandwidth.
American Psychological Association (APA)
Jiang, Xialin& Su, Wei& Cheng, En. 2017. Combined Hybrid DFE and CCK Remodulator for Medium-Range Single-Carrier Underwater Acoustic Communications. Wireless Communications and Mobile Computing،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1205848
Modern Language Association (MLA)
Jiang, Xialin…[et al.]. Combined Hybrid DFE and CCK Remodulator for Medium-Range Single-Carrier Underwater Acoustic Communications. Wireless Communications and Mobile Computing No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1205848
American Medical Association (AMA)
Jiang, Xialin& Su, Wei& Cheng, En. Combined Hybrid DFE and CCK Remodulator for Medium-Range Single-Carrier Underwater Acoustic Communications. Wireless Communications and Mobile Computing. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1205848
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205848