• Journal of Satellite, Information and Communications
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• v.7 no.2
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• pp.42-46
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• 2012

This paper analyses technical and economical conditions which activate the use of mobile communication spectrum not to limit the growth of mobile broadband service because of mobile big data traffic and proposes the method which activate the use of mobile communication spectrum. To activate new mobile communication spectrum the expenditure and income of investment should be balanced. The activation of new mobile communication spectrum to process mobile big data traffic depends on technical and economical conditions, internal and external factors of service provider. The investment expenditure is relate to CAPEX, OPEX which is internal factors of service provider and to spectrum price which is external factor of service. The investment income is relate to tariff system which is internal factors of service provider and to spectrum neutrality which is external factor of service provider. The activation of new mobile communication spectrum can be implemented when the investment expenditure and investment income meet the balance including the spectrum price in the investment expenditure and the tariff system which is able to extend network and the income based on traffic increase by external contents in the investment income.

• Journal of Digital Convergence
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• v.4 no.2
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• pp.127-142
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• 2006

This paper uses a Mobilans case based on software system to derive the results of our study. Recently, the mobile phone payment entered its matured stage and became most frequently used payment method in all internet sites. And, in order to prepare for the future ubiquitous market, every mobile phone payment methods has different speed of development, market status and target segments in the market. This paper also discusses about the background and current status of Korean mobile phone payment market using SMS(Short Message Service) to purchase items on internet which is growing sharply every year. Also, we try find the key factors to succeed in this growing market. In addition to safety, delayed payment and the immediateness for use of mobile phone, we also suggest that a highly developed hardware system is an additional factor under the increased demands for the convenience with various applications.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.87-90
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• 2004

Telematics is an emerging industrial field made up of the convergence of technologies. The key technologies for Telematics are server-side technology, terminal-side technology, communication-related technology, and positioning technology. Standardization in Telematics is now getting more notice these days. Domestic situation is explained for several related facilities such as ETRI, TTA, and Telematics Standardization Forum. In this paper, we will focus especially on the standard reference model that is the most fundamental framework of Telematics technology standardization. In the reference model, the Telematics system is composed of Telematics client part, communication part, and Telematics server part. The Telematics client part consists of terminal, positioning device, and car electronic devices. Communication part can be composed of various telecommunication channels such as CDMA, WLAN, DMB, WiBro, etc. which can guarantee the seamless two-way communication. Telematics server part is composed of TSP(Telematics Service Provider) server and CP(Contents Provider) servers gathering and managing the various Telematics services. This Telematics reference model is expected to be utilized as the base architecture in developing the technology and standards from now on.

• Journal of information and communication convergence engineering
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• v.8 no.3
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• pp.295-300
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• 2010

Recent researches of network structure are moving to high-level networks because there are already many research results of low-level network. Especially, current network services has been changed to the multimedia service using multicast routing such as IPTV(Internet Protocol Television) service. And then previous multicast services were provider oriented. So previous multicast structures were organized server/client model. But future multicast services will make user oriented services. Therefore there will be many service providers in the future. At this point, we study P2P network for supporting multi provider. So we research load balancing and contents lookup protocols in P2P network. In this paper, we propose network protocol and system based on super peer P2P for load balancing and efficiently service search. And we considered mobile environment for mobile IPTV.

• Journal of Digital Convergence
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• v.6 no.1
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• pp.21-34
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• 2008

This study explored which policies can be win-win strategies among internet portals and digital content providers. With taking the professional advise by interview and descriptive Questionnaires, the study suggested which governmental policies may be the mutual and proper winning strategies in internet industry, specifically between internet portal sites and content providers. Researcher kept in contact with five opinion leaders in this field and proposed thirteen candidate policies, which can give implications to the related governmental agencies, internet portals and contents providers. Some of these suggested policies may have been done and are being done conservatively in some area. But, in order to positively activate and develop the domestic digital contents industry, this study emphasized that the related agencies should perform the progressive policies and assign the financial supports to internet industry.

• Journal of Distribution Science
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• v.17 no.10
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• pp.83-91
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• 2019

Purpose - Media is a significant distributional channel in sport. In terms of determining the influencer in building sport media contents, recent sport media studies have employed agenda-setting theory, assuming media itself as the agenda provider. In a real-world situation, however, sports stars have been deemed key factor determining distribution contents in sport. The starting point of this study is the "tacit premise" of agenda-setting theory. Given the agenda-setting theory, the current study attempted to explore the function of sport stars as an agenda provider, which is a key determinant of sport distribution. Research design, data, and methodology - This study has reviewed articles of Yuna Kim, Sang-hwa Lee, and Hyun-jin Ryu from daily newspapers including as dong-a ilbo and joongang ilbo (2013 to 2017). The study collected data, portable document format (PDF), from the online archive of dong-a ilbo and joongang ilbo. We coded the length of the article, the frequency, the size of the picture, and the structural form of the article. Inter-coder reliability was compared with data previously investigated by the researcher. Inter-coder reliabilities for study 1 and 2 was .89 and .85. To examine hypotheses, descriptive analysis, correlations, and cross-tap analysis were performed. Results - The results partially supported the hypotheses proposing the significant role of sports stars as the agenda setters in distributing sport media contents. In specific, the study found that the number of articles about sports stars prevailed the number of articles about regular athletes. Besides, studies found that the use of photos was more frequent in articles of sports starts than that of regular athletes. In sports newspaper articles, featured story articles were used more than straight-articles for news relating to sports stars. Also, sports newspaper of sports stars contained more information associated within an event rather than outside of an event. Conclusions - In sports journalism, this study challenges the current theory that the media affects the composition and the content of sports coverages. As the principle of the agenda-setting of sports media, the influence of sports stars must be continuously studied along with a follow-up study.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.91-92
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• 2011

최근 유비쿼터스 시대의 도래와 함께 모바일 기기를 이용한 서비스 수요가 급격히 증가함에 따라 대량의 콘텐츠와 서비스를 효율적으로 제공하기 위한 연구가 진행되고 있다. 이를 위해 사용자의 상황 정보를 이용하여 개인화 서비스를 제공하기 위한 다양한 모델들이 제시되고 있다. 하지만 이러한 모델들은 상황에 따른 사용자의 선호도 혹은 컨텍스트를 자체적으로 수집/분석하여 추천한다는 점에서 신뢰도가 높은 콘텐츠를 추천하지 못하거나 이를 검증할 수 없다는 문제점이 있다. 본 논문에서는 시공간 복합 상황 정보와 사용자의 컨텍스트를 활용한 분석과 함께 콘텐츠와 서비스를 제공하는 외부 CP(Contents Provider)가 Open API로 제공하는 신뢰도에 따라 소비 가치가 높은 최적의 콘텐츠를 제공할 수 있는 추천 시스템을 제안한다.

• Journal of Digital Contents Society
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• v.8 no.3
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• pp.411-418
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• 2007

Digital cinema is an important contents provider and powerful contents as itself in the paradigm of media convergence. Digital cinema extend its screening platforms to the public television, CATV, internet and mobile channels beyond a theater. This study derives peculiar features of digital cinema that first screening on these platforms with case study. Furthermore, this study investigates features of digital cinema according to the multiplicity of platforms and a method of the utilization of digital cinema in the rapidly changing situation.

• Journal of the Korea Society of Computer and Information
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• v.10 no.3 s.35
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• pp.133-141
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• 2005

Digital contents can be distributed via internet without qualify defect and this will bring a great loss to the contents provider. Therefore, it is necessary to investigate on the key exchanging protocol to protect the digital contents effectively. In this study we propose the key exchanging protocol based on password to send the digital contents efficiently. The stability suggested here is based on the difficulty of the discrete algebra and Diffie-Hellman problem and also it provides a secure safety against various attacks such as a guess attack on the password.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.753-754
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• 2011

SNS(Social Network Service) is not provider-oriented service unlike the existing internet communication services. So contents produced by SNS are rapidly increase. In this paper, we analyze the algorithm for selection priority of contents.