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

doi:10.16182/j.issn1004731x.joss.21-0089

Abstract

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

CLC Number:

TP391

Xinyu Dou, Xiaohui Chen, Dequn Liang, Bin Lin. A High Spectral-efficiency Maritime Very-High-Frequency Communication Technology and Simulation[J]. Journal of System Simulation, 2022, 34(6): 1208-1218.

Figures/Tables 11

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