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Distributed Antenna Systems for VHF Maritime Communications

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Abstract

In this paper, we considered a distributed antenna system (DAS) to expand the coverage of VHF maritime communication systems and analyzed its performances. To reflect the geometrical distributed antenna port placements along the coastline, we considered a linear antenna layout. By deriving the lower bounds of the expected signal-to-noise ratio (SNR), we analyzed the SNR performances for both single-ship and multiple-ship transmission schemes. Next, based on the analytical results, we present design guidelines to implement the DAS based VHF maritime communication system. From the simulation results, the coverage expansion effect of the DAS was verified by the increased expected SNR. In addition, we confirmed that the system design parameters could be found from simple numerical calculations.

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Notes

  1. Typical value of path loss exponent \(\beta\) in an urban or suburban environment is greater than 3.5; however, due to the smaller propagation loss \(\beta\) in a seaport area, it is closer to 2 [10].

  2. 156.8 [MHz], i.e., VHF Channel 16, is used as a marine VHF radio frequency for an international distress call.

  3. 1 nautical mile is 1852 m

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Acknowledgements

This work was supported by the Korea Maritime and Ocean University Research Fund.

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  1. Faculty of the Navigation Science Department, Korea Maritime and Ocean University (KMOU), 727 Taejong-ro, Yeongdo-gu, Busan, 606-791, Korea

    Joonwoo Shin

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  1. Joonwoo Shin
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Correspondence to Joonwoo Shin.

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Shin, J. Distributed Antenna Systems for VHF Maritime Communications. Wireless Pers Commun 114, 1623–1633 (2020). https://doi.org/10.1007/s11277-020-07442-8

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