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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.10
- 수록면
- 514 - 520 (7page)
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This paper presents a novel shore-to-sea maritime data transmission system based on time-code diversity,using visible light in maritime environments to overcome the limitations of conventional maritime wirelesscommunications. The proposed system is primarily comprised of existing LED-based lighthouses andmaritime transceivers (marine beacons, buoys, etc.), and thus is considered cost-effective in terms ofimplementation. We first analyze maritime visible-light communications on the basis of the uniqueproperties of a maritime environment, i.e. sea states (wave height, wind speed, etc.), plus atmosphericturbulence, using the Pierson-Moskowitz (PM) and JONSWAP (JS) spectrum models. It is found that theJS model outperforms the PM model, and that the coverage distance depends on the LED power and seastates. To combat maritime fading conditions that significantly degrade performance and coverage distance,we propose a time-code diversity (TCD) scheme in which the delayed versions of the original data areretransmitted using orthogonal Walsh codes. This TCD scheme is found to be superior, in that it offersthree orders of magnitude in terms of BER performance, compared to a conventional (non-TCD) transmissionscheme. The proposed scheme is robust and efficient in overcoming the effect of impairments present inmaritime environments with a BER of approximately 10<sup>-5</sup>and a data rate of 100 Kbps at a distance of1 km
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참고문헌 (18)
참고문헌 신청
B. Nora / 2013 / The impact of ship crews on maritime safety / Publications of the Centre for Maritime Studies, University of Turku :A64
IALA / 2007 / The IALA definition and vision for e-Navigation / E-NAV2-output :11
J. S. Pathmasuntharam / 2008 / TRITON:high speed maritime mesh networks / in Proc. IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications :1~5
ESA Telecommunication & Integrated Applications
Phyu Phyu Han / 2015 / Color Clustered Multiple-input Multiple-output Visible Light Communication / Current Optics and Photonics 19(1):74~79
IALA / 2007 / The IALA definition and vision for e-Navigation / E-NAV2-output :11
J. S. Pathmasuntharam / 2008 / TRITON:high speed maritime mesh networks / in Proc. IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications :1~5
ESA Telecommunication & Integrated Applications
Phyu Phyu Han / 2015 / Color Clustered Multiple-input Multiple-output Visible Light Communication / Current Optics and Photonics 19(1):74~79
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