• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.3B
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• pp.517-525
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• 2010

The IPTV Service provides various interactive services beyond the level of being able to substitute cable TV. The IPTV system is to be decentralized gradually in which one server conducts all tasks. Primarily, deliberation of media needs to be changed into a system in which relayer and peer from the central server is utilized. Secondarily, the way of controling IPTV network need to be decentralized. Unlike the current client-server system, P2P(Peer To Peer), the main technology of decentralized IPTV is able to provide a service by cooperation of each node. Dealing with live streaming IPTV system which is based on the P2P protocol, this paper design the pure P2P IPTV structure and does verify the performance of P2P IPTV structure by realizing real system.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.21 no.1
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• pp.105-116
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• 2011

Mobile IPTV is a IPTV interactive broadcasting service through wireless Internet. Mobile IPTV service would be much more promoted. Thus, the methods for protecting the broadcasting contents will be indispensible elements for the successful Mobile IPTV service achievement. This paper describes the characteristics of Mobile IPTV and the related contents protection techniques. To evaluate several security issues, we suggest a DCAS security framework model for Mobile IPTV, and speculate the most widespread, a security technologies for Mobile IPTV such as DCSA. Moreover, candidate models of Mobile IPTV protection system are suggested based on these technologies.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.10 no.3
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• pp.213-219
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• 2017

Recently, the Internet Protocol Television (IPTV) services have become very common, enabling various Internet-based services as well as watching TV. In the IPTV system, a Set-Top box (STB) plays a key role as a network terminal device that transmits and receives realtime multimedia contents. In addition, the IPTV networks are usually supported by broadband optical fiber-base network such as fiber-to-the-home (FTTH), However, a general IPTV STB is regarded as one of the local area network (LAN)-attached devices while sharing the bandwidth of the LAN (e.g., Ethernet). In order to overcome the limited bandwidth utilization by fully facilitating the broadband bandwidth (e.g., 1 Gbps) of the optical fiber-based network, we propose a new FC (Fiber Channel)-embedded IPTV STB which can be directly attached to the optical fiber network. Then, we verify that the impacts of the proposed FC-embedded IPTV STB by organizing the the FC-AL (Fiber Channel-Arbitration Loop) network equipped with the FC-embedded IPTV We measures the average Start-up Delay, Average Reject Ratio and the Number of Concurrent Users through extensive simulations to investigate the performances of the suggested FC-AL-based IPTV network. Surprisingly, the IPTV network architecture with the proposed FC-embedded IPTV STBs has an excellent average start-up delay of less than 10 msec, an acceptable average reject ratio of less than 3 % as well as a linear increase of the number of concurrent users when extending the architecture. This reveals that the proposed FC embedded STB has a superior impacts on the performance of the entire IPTV network by effectively utilizing the broadband bandwidth of the fiber optic-based network.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.949-952
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• 2009

2007 IPTV joining furniture according to passing over 100 households, with the fact that IPTV markets will more be magnified in future. Also the enormous brazier being caused by IPTV commercial markets of IPTV markets are prospective 2015 with the fact that will reach to 850,000,000,000 won, advertisement central medium means IPTV advertisement or web coat online advertizing is center from TV advertisements. Currently compares TV advertisements and IPTV advertisements from the present paper consequently and according to the user who uses the contents the elder brother IPTV advertisement fixing is a service and the agent for plans.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.2B
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• pp.313-324
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• 2010

IPTV has been launched to provide a simple convergence service with broadcast and communication, and now it is evolving to support personalized service capabilities according to user's requirements. The paper presents DSON architecture and its control model to provide personalized features and user centric capability in IPTV services over service overlay network. Furthermore, the paper introduces DSON based service models on community IPTV and home IPTV service model.

• Journal of Digital Contents Society
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• v.10 no.1
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• pp.87-96
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• 2009

Digital Broadcast Service is being very popular and the delivery mechanism for digital broadcast content through IP network has progressed constantly, due to the advance of video and audio compression and network technologies. From these trends, in Korea, the commercial IPTV service starts in this year after the law related to IPTV is enacted last year. Since IPTV service, which integrates broadcast and communication services, can give an infrastructure for fusion of communication and interactive multimedia data service, IPTV service is attractive. Recently, by the advent of various wireless connection technologies and the mobile devices of high capability, Mobile IPTV, which has an advantage of not only IPTV but also mobile TV, has gained much interest. In this paper, we review a necessary ingredient for Mobile IPTV in the next generation wired/wireless convergence network environment which consists of heterogeneous wireless access networks. In addition, we propose the scheme for user mobility and service session mobility management using RTSP protocol and introduce the service gateway concept to guarantee the extension of IPTV service platform.

• Review of KIISC
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• v.19 no.5
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• pp.73-80
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• 2009

IPTV의 상용화 및 활성화에 따라 향후 언제 어디서든 IPTV 서비스를 제공받고자 하는 요구가 예상되고 있고, 이에 따라 모바일 IPTV에 대한 연구가 활발하게 진행되고 있다. 보안 기술에 있어서도 모바일 IPTV는 고정 IPTV와는 달리 소형 모바일 기기와 무선 환경을 이용하여 서비스를 제공하여야 하므로 이에 맞는 기술이 개발되어야 한다. 본 논문에서는 모바일 IPTV의 개념과 모바일 IPTV 서비스를 위한 보안 요구사항을 살펴 보고, 모바일 IPTV에서 사용되는 보안 기술을 제한수신 시스템(CAS)과 DRM으로 대표되는 서비스 보안 및 콘테츠 보안 기술을 중심으로 살펴 본다.

• Journal of The Korean Association of Information Education
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• v.13 no.3
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• pp.393-400
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• 2009

As one of leading media converging broadcasting and telecommunications, IPTV is required to pursuit the idea of public interest from broadcasting industry and universal service from telecommunications industry as well as satisfying industrial effect. It needs to consider both industrial effect and public benefit when vitalizing IPTV services. The project of providing IPTV-based interactive public services is expected to enhance accessibility of public services, present shape of new public service in broadcasting-telecommunication convergence environment, resolve the shortage in contents supply which is one of most important problems in IPTV services. In this research understanding the overall response such as service usage status, satisfying/dissatisfying factor, trend of preference of the customer using IPTV-based interactive public services, we analyze what the public service mean in IPTV environment and public identity of IPTV. And we have investigate effective developing method and ripple effect of IPTV-based public services on broadcasting and telecommunications converged ecosystems.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.3 no.2
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• pp.163-177
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• 2009

The demand for services using digital technology is constantly increasing as new developments in digital consumer electronics and the Internet are made. This is especially true in terms of the demand for IPTV utilizing high speed Internet networks. Research on IPTV threats is important for facilitating financial transactions via IPTV and preventing illegal use or copying of digital content. Thus, this paper analyzes IPTV threats via the IPTV value chain. That is, the distribution system for IPTV service is analyzed along with the components of the value chain and corresponding IPTV security requirements or security technologies, in order to perform a threat analysis and research suitable for the IPTV service environment. This paper has a greater focus on the value chain of the IPTV business than the approach in previous research, in order to analyze security requirements and technologies that are more applicable to the business environment.

• Journal of The Korean Association of Information Education
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• v.19 no.4
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• pp.419-430
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• 2015

This paper provides a database about the IPTV VOD usage behavior of children as well as mother's perception at home. We analyzed the correlation of mother's background with IPTV VOD using time of children through a survey. We analyzed how does the mother's background influences usage time of IPTV VOD for children through a survey. The survey was conducted by 500 mothers who have two to seven years old children with IPTV users in Korea. Compilation of the data reveals that 1) 36.6% of the children have watched IPTV VOD for the first time at two years old, 93.4% have encountered by family members among them. 40.8% of users have played IPTV VOD for children four days a week and the main genre was the animation. 2) The main reason for watching VOD was by the needs of their children, but the 66% of mothers concern for an excessive level of watching. 3) educational background of mother and monthly house income were significantly correlated with the usage time of IPTV VOD for children.