• Digital Contents
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• no.4 s.131
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• pp.37-46
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• 2004

속도가 느린 모뎀으로 데이터통신을 할 수 있다는 사실에 고마움을 느낀 게 바로 얼마전이지만 이제는 거리에서 게임을 즐기고, 차안에서도 주식시세를 확인하는 세상을 살고 있다. 더구나 유선과 무선으로 분리됐던 통신망을 단일망으로 통합하는‘NGN’에 이어 더 포괄적인 개념의‘BcN’구축사업이 본격화되고 있고, 곳곳에 컴퓨터 칩과 센서가 박히는‘유비쿼터스 시대’도 눈앞에 두고 있다. 언제(anytime), 어디서나(anywhere), 어느 기기(any device)든지, 미디어에 구애받지 않고(any media) 소통할 수 있는 4any시대가 열리고 있는 것이다. 이에 발맞춰 세계 유수의 기업들은 저마다 새로운 승부수를 던지고 있다. <디지털콘텐츠>는 2회에 걸쳐 인프라 변화추이를 살펴보고, 이에 따른 차세대 디지털콘텐츠 산업을 조망한다

• Proceedings of the KIEE Conference
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• 2005.07b
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• pp.1550-1552
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• 2005

본 논문은 건설교통부의 국도 ITS에 도로변의 현장설비와 센터간 교통정보 수집체계에 전력선통신(Power Line Communication, PLC)망 적용에 관한 연구이다. 지능형교통시스템(Intelligent Transport System, ITS)에서 사용하고 있는 기존의 유 무선 통신망과 PLC망과의 통신 용량 및 속도, 구축 및 운영비용, 데이터 신뢰성 등을 비교하여 적용 가능성을 분석하였다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.10
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• pp.1990-1998
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• 2017

The success of naval operation prioritizes the implementation of a robust communication network that delivers accurate and prompt communications to one another. The satellite, which is the main communication network of the military, is required to construct a preliminary communication network because of the enemy radio disturbance and weak point of fixed antenna. The military operational communication network has been in transition from voice-centered wireless communication network to text message-based communication network. In this paper we suggest an enhanced communication method built on Roll Call, the main communication method of ROK Navy operating tactical data link called Link-11. Simulation results display that the proposed method reduces the transmission time per unit frame by 4.3 times compared to the Roll Call and 6.3 times compared with the Round Robin & Broadcasting; it is also proved that the higher the direct reception rate, the shorter the transmission time required by 1.6 times maximum.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.04a
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• pp.143-144
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• 2010

Recently, IALA has introduced AIS AtoN and standardized Aids to Navigation communication system and the World-wide IALA-Net has announced plans to build the system. Systematic beacon network may offer opportunities to make infrastructure for information service and upgrade AtoN service performance. This paper proposes Aids to Navigation information service network for e-NAV. Network based on AIS is consist of AIS AtoN channels as Real, Synthetic or Virtual AIS AtoN. And inner network is consist of Wireless networks as AIS, WCDMA, WIFI, WlBRO, USN or VSAT. Introducing of various network systems can lead to combine and design among land, beacon and service network infrastructures.

• Journal of Advanced Navigation Technology
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• v.16 no.6
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• pp.920-926
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• 2012

In this paper, marine accidents recently happened in Korea and Japan for 5 years, especially through the analysis of accident characteristics for fishing vessels, including small vessels were analyzed. Also propose a new maritime safety communication network in the form of a comprehensive considering the wave propagation characteristics and operational characteristics of radio communication equipments should be installed in the vessel through comprehensive analysis of the regulation according to the radio equipment and the ship's location identification device installation and operation.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.7 no.1
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• pp.26-33
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• 2003

The SSB(Single Side Band) communication in the 27MHz band has mainly been using between fishiery station and small fishing ship less than 101ons, but the most of small fishing ship are depend on cellular system. When accident for small ship at sea happens, It's very important to communicate continuously for preventing the collision and taking action. At present it is hard to control small fishing ship and provide information properly by using 27MHz SSB channel. Therefore in this paper We present TRS communication system applied for small fishing ship to protect the safety and life at sea and to prepare for emmergency, and also validate it's application.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.196-201
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• 2002

The SSB(Single Side Band) communication in the 27MHz band has mainly been using between fishiery station and small fishing ship less than 10tons, but the most of small fishing ship are depend on cellular system. When accident for small ship at sea happens, It's very important to communicate continuously for preventing the collision and taking action. At present it is hard to control small fishing ship and provide information properly by using 27MHz SSB channel. Therefore in this paper We present TRS communication system applied for small fishing ship to protect the safy and life at sea and to prepare for emmergency, and also validate it's application.

• The Journal of the Korea institute of electronic communication sciences
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• v.3 no.1
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• pp.31-38
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• 2008

Tanker oil outflow accident and nitric acid 2000 ton of our country T'aean offing fire etc. vessel sinking and the national treasure 1 good-natured person swunglyey bites to tell the truth the many misfortune occurred in recent times and the numerous casualty occurred. Consequently the righteousness where the preparation and misfortune will occur became the VIP where the preparation and misfortune will occur became the VIP where the information transmission which is quick is important about disaster. Consequently establishes the information transmission system which is quick in the area where the effect of misfortune is worried from observation perceives a disaster construction system development the merger of state radio network with under contributing which minimizes the loss of property and life of the citizen who is caused by with disaster damage boil.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.368-369
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• 2018

This paper presents a current status and perspectives of Operation system of SMART-Navigation and LTE-Maritime as major communication infrastructure of SMART-Navigation.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.2
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• pp.51-56
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• 2017

With the rapid increase in the number of mobile terminals, demand for wireless technologies has sharply increased these days. While wireless communication provides advantages such as ease of deployment, mobility of terminals, continuity of session, and almost comparable transmission bandwidth to the wired communication, it has vulnerability to malicious radio attacks such as eavesdropping, denial of service, session hijacking, and jamming. Among a variety of methods of preventing wireless attacks, the MTD(Moving Target Defense) is the technique for improving the security capability of the defense system by constantly changing the ability of the system to be attacked. In this paper, in order to develop a resilient software defined radio communication testbed system, we present a novel MTD approach to change dynamically and randomly the radio parameters such as modulation scheme, operating frequency, packet size. The probability of successful attack on the developed MTD-based SDR communication system has been analysed in a mathematical way and verified through simulation.