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A novel adaptive terahertz system for reliable and efficient maritime communications under hostile sea conditions

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posted on 2022-07-01, 13:20 authored by Jianxin Feng, Jingjing Xu, Chengsheng Pan, Yuanming Ding, Hui FangHui Fang

Terahertz (THz) frequency band has been widely used in indoor, outdoor and space communications due to its advantage of large available bandwidth. However, limited research has been conducted to apply THz technique in maritime communications as hostile sea conditions cause significant path loss, thus leading to unacceptable signal error rate. In this paper, we propose a novel adaptive THz maritime communication system to tackle the above-mentioned challenge. Specifically, we design a joint source-channel coding scheme by using system random linear network coding (sRLNC) and Reed-Solomon (RS) to ensure transmission reliability. To further improve the transmission efficiency, we propose a novel triple-channel communication architecture facilitated by a very high frequency (VHF) feedback channel. With this design, the source data can be transmitted via the THz main channel while the coding redundancy is dispatched in the auxiliary channel. Meanwhile, the feedback channel allows sender to use an adaptive mechanism to achieve the transmission efficiency with higher transmission rate over long communication distance. In addition, we adopt the Doppler frequency offset in maritime environment to compensate both relative movement between communication parties and adversarial maritime factors, e.g., strong wind and extreme sea states. Simulation results demonstrate that our proposed THz system has remarkable capability not only to improve the communication efficiency up to 20Gbps compared to those conventional high frequency (HF), VHF and millimeter wave communication systems but also to transmit data over a longer distance with lower BERs.

Funding

Key project of National Natural Science Foundation of China under Grant No. 61931004

National High Technology 863 under Grant No. 2015AAXXX

Basic Scientific Research Funds of the Ministry of Education under Grant No. N110404035

General project of Education Department of Liaoning Province under Grant No. L2015016

History

School

  • Science

Department

  • Computer Science

Published in

IEEE Access

Volume

10

Pages

66127 - 66142

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Version

  • VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by IEEE under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (CC BY-NC-ND). Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

2022-06-04

Publication date

2022-06-10

Copyright date

2022

ISSN

2169-3536

eISSN

2169-3536

Language

  • en

Depositor

Dr Hui Fang. Deposit date: 9 June 2022

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