Journal of System Simulation ›› 2022, Vol. 34 ›› Issue (6): 1208-1218.doi: 10.16182/j.issn1004731x.joss.21-0089

• Modeling Theory and Methodology • Previous Articles     Next Articles

A High Spectral-efficiency Maritime Very-High-Frequency Communication Technology and Simulation

Xinyu Dou1(), Xiaohui Chen1, Dequn Liang1, Bin Lin1,2()   

  1. 1.College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China
    2.Network Communication Research Centre, Peng Cheng Laboratory, Shenzhen 518052, China
  • Received:2021-01-29 Revised:2021-04-16 Online:2022-06-30 Published:2022-06-16
  • Contact: Bin Lin E-mail:xydoudlmu@163.com;binlin@dlmu.edu.cn

Abstract:

Marine communications cannot follow the development route on land of developing high frequency resources and high spectral-efficiency modulation technologies in 5G and 6G high-speed communication. The data rate and spectral-efficiency of maritime communications are low and are difficult to be improved. A high spectral-efficiency maritime very-high-frequency (VHF) communication technology based on multi-carrier time-delay overlapping modulation (MC-TDOP) is proposed. The core is delaying the subcarriers in turn and directly overlapping them in time domain. The orthogonality between the subcarriers can be neglected, thus the spectral-efficiency can be further enhanced from the fundamental information modulations. The results show that the proposed technology can achieve the maritime peak data rate of 307.2 kbps wth only 1/5 VHF spectral bandwidth occupation. The results are of great significance to the evolution of the future maritime information system.

Key words: maritime communication technology, multi-carrier time-delay overlapping modulation (MC-TDOP), communication rate, very-high-frequency(VHF), spectrum efficiency

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