• Journal of Information Technology Applications and Management
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• v.12 no.3
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• pp.97-109
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• 2005

The internet and wireless communication technologies are creating ubiquitous environments in which various services are expected anytime and anywhere. Many hardware facilities have been developed and system structures are suggested for mobile services to realize a ubiquitous computing environment with appropriate quality. But these applications are not designed in the consideration of the general capabilities to perform user's wireless and mobile communication/transaction. Consequently, different needs from users are not sufficiently satisfied yet. In this study, we suggest structure of the emerging network system for mobile commerce that provides users with seamless and ubiquitous environments using location information which exploit context-aware technology.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.131-134
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• 2008

Increasing the need of national safety management system in order to an epoch-making improvement to scientific disaster management which appears new types of disasters through the exchange of traditional disaster environment and responds actively to the rapid exchange of social environment based on u-IT. Requiring the development of systematical information sharing networking system and sharing realtime data amongst government, local authorities and related organisations under both safety management in normal times and circumstance management in disaster times, and need for the establishment of national safety strategy, which has been strengthened function such as prevention and preparation. This research provides a basic scheme and strategic tasks in order to constitute preventing scientific national disaster prevention structure at anytime and anywhere from disaster which is based on ubiquitous technology and realise the intelligent national disaster prevention system of u-safe Korea.

• Journal of Korea Technology Innovation Society
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• v.7 no.1
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• pp.207-227
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• 2004

In this paper, we consider the SmarTV(Super-intelligent Multimedia Anytime-anywhere Realistic TV0 project which aims to develop the essential and future technologies in the field of broadcasting. This project is one of five huge national projects funded by MIC(Ministry of Information and Communication) of Korea and is being carried out by ETRI(Electronics and Telecommunications Research Institute). We introduce the concept of SmarTV service and categorize the service into five areas. Based on this, then, we develop the business model for SmarTV service providers. in addition, the rough prospect of SmarTV service providers' revenue structure is included.

• 한국정보통신설비학회:학술대회논문집
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• 2008.08a
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• pp.573-578
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• 2008

While going through economic development for several decades, Korea has become an industrialized country, and the development of industrial technology accelerated the advent of the information opportunity era. The recent information oriented society has brought forth the development of new information communication technology that enables anybody to obtain information easily and simply, and recently power line communication technology is being developed that allows the use of the existing power line net-works as they are. Each advanced country that faced up to a riffle effect of power line communication technology that enables us to obtain information easily anywhere at anytime is engaged in fierce competition to be a leader in this technology and to preoccupy the standardization of power line communication technology. At this point, this study is to help Korea take the lead in information communication technology by proposing a direction for the standardization that Korean power line communication technology needs to head for by identifying the trend of the worldwide of power line communication technology.

• Proceedings of the KIEE Conference
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• 2001.07d
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• pp.2774-2776
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• 2001

Recently web based lectures in Engineering education are on the increasing. It is required to evaluate student's records on the web. This paper presents web based evaluation system which can evaluate efficiently a stage of understanding in the learning process. The proposed web based evaluation system is designed and implemented using PHP and ORACLE. Lecturers can manage their questions for an examination and learners also can sit for an exam anytime, anywhere, confirm their score in this system. Therefor it provide lecturers and learners with feedback education.

• Proceedings of the KIEE Conference
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• 2005.07b
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• pp.1562-1564
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• 2005

The study for ubiquitous computing infra is proceeding actively, it make possible to use service and access network anywhere, anytime because of wire/wireless communication technology and progress of hardware. Domestically, study for the network mobility support technology which is the key technology for future ubiquitous computing realization have progressed, but that is insufficient. Especially, there is no study for independent mobility support study about railway wireless network. So, this study propose network mobility management technology for mobile network infra in railway and proper network model in train.

• The Journal of Engineering Research
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• v.6 no.2
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• pp.47-59
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• 2004

The purpose of this study is to establish a high-tech information-oriented city which will have a good public welfare system and will have safe city life through realization of environment-friendly society and harmonizing culture with information which makes it possible for anyone to get information easily at anytime and anywhere. This study deals with conceptualizing for and constituents of urban information system. It deals also with gathering contents and suggesting the contents program : The indication of building the plural information contents offering efficient and visual information by means of all kinds of method such as mobile, kiosk, screen, and car navigation are examined.

• Journal of Korea Multimedia Society
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• v.19 no.8
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• pp.1466-1470
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• 2016

As individuals create many contents anytime and anywhere together with the widespread dissemination of smart devices as well as various social networking services (SNS), content centric networking (CCN) has regarded as a new networking technology. However, CCN is exposed to malicious attacks on the mobility management of mobile content sources during handover and high volume of control messages. Therefore, this paper presents a secure duplicate name detection (SecureDND) mechanism without additional control messages by signed information and secure token. It is shown from the performance evaluation that the proposed scheme can provide low control overhead, which results in the network scalability.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.05a
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• pp.817-821
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• 2009

The crisis also complicated where deployment aspects the interaction of several factors, as well as, It is hard to knows anytime anywhere to raise. Therefore, in fact, it is impossible to prepare that accurately predict all the crisis. This research organization to maintain the stable activity from crisis that it is presented to crisis management system and Risk-based Decision Making Process.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1344-1353
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• 2008

The trend is that the wireless communication system, which has specific characteristics ; low cost & limitation for installation, has been developed more actively than the wire communication system. Therefore, the communication system has been changed from the wire system with an optical cable to the wireless system in the various field of life. In the railroad field, lots of researches on the wireless communication system for the safety of infrastructure and the convenience of passenger have been conducted. The WSN(Wireless Sensor Network), which means same concept with USN(Ubiquitous Sensor Network), pursues the ubiquitous environment which means user can access network at anywhere and anytime. In this paper, the wireless communication technologies which are suitable for the WSN of subway station were investigated and the best solution of WSN was suggested.