文章基本信息

标题：A MODEL OF OFDM BASED MARITIME VHF COMMUNICATION SYSTEM FOR DATA EXCHANGE
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作者：Sanjin Valčić ; Tibor Pogány ; Tibor Pogány 等
期刊名称：Polish Maritime Research
电子版ISSN：2083-7429
出版年度：2018
卷号：25
期号：2
页码：27-36
DOI：10.2478/pomr-2018-0051
语种：English
出版社：Sciendo
摘要：In the maritime Very High Frequency (VHF) band,there are no systems for transmitting large amounts of data.Therefore,it is necessary to develop new systems that would modernize the Global Maritime Distress and Safety System (GMDSS),significantly relieve the Automatic Identification System’s (AIS) communication channels,and set guidelines for the development of communication infrastructure of the e-Navigation.In line with this,analytical and simulation models of the maritime VHF data transmission communication system using Orthogonal Frequency Division Multiplexing (OFDM) modulation are worked out in this paper.The achieved data rate,the spectral efficiency and the bit error rate (BER) represent validation parameters on which the results of the analytical and simulation models are evaluated.It is concluded that the application of the digital OFDM modulation in the maritime VHF band may improve the GMDSS system by achieving higher data rates compared to the current terrestrial mandatory systems for data exchange,i.e.Digital Selective Calling (DSC) and AIS.
关键词：Maritime VHF communications;OFDM modulation;AWGN;SNR;BER