Construction and Evaluation of the Internet Connection Methods for Ships -Effective Usage of Flat-rate Mobile Data Communications
| Autor: | Osamu Suzuki, Kazumasa Shimoda, Toshiaki Ban, Sho Watanabe |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Mobile radio
Shore Engineering geography business.product_category geography.geographical_feature_category business.industry computer.internet_protocol Mobile broadband Virtual Router Redundancy Protocol Communications system Internet access The Internet business Telecommunications computer Network address translation Computer network |
| Zdroj: | The Journal of Japan Institute of Navigation. 132:63-70 |
| ISSN: | 2187-3275 0388-7405 |
| DOI: | 10.9749/jin.132.63 |
| Popis: | Recently, communications speed of several tens Mbps and flat-rate service have been available as radio links. Although, it is especially difficult to maintain the connected state from ships by using them. The purpose of the paper is that the authors construct the stable Internet connection by efficiently utilizing them for ship to shore. There has been literature on aspects of data collection system to understand marine traffic data from ship and shore. The authors examined by a simulation built at Toba Maritime College and applied the results to Training Ship TAISEIMARU (Length 125m, 5,887 Gross tons). The following are the results obtained: By limiting of number of NAT (Network Address Translation) descriptor, it reduced the occupancy rate of the line to approximately one-seventh, so that a median of Round Trip Time improved approximately 100ms. Moreover, the authors established the unattended network connection automatic changeover system by using Virtual Router Redundancy Protocol for ship and shore. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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