• 제목/요약/키워드: 광역채널

검색결과 34건 처리시간 0.024초

A Study on Audience Preference Types for Local Broadcasting Content : Focusing on the YouTube Channels of Terrestrial Broadcasters in Gwangju Metropolitan City (지역 방송사 콘텐츠에 대한 수용자 선호 유형 연구 : 광주광역시 지상파 방송사의 유튜브 채널을 중심으로)

  • Ji Yeon Park;Jong-Yoon Lee;Jang Sun Hong
    • The Journal of the Convergence on Culture Technology
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    • 제10권4호
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    • pp.501-508
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    • 2024
  • The rapid development of digital media has led to a swift transition of video content consumption to new media channels. Terrestrial broadcasters that have expanded their strategies to include YouTube channels have achieved significant success, even to the extent of restructuring their revenue models. Based on these successful examples, local terrestrial broadcasters have been striving to expand their presence on YouTube. However, the results have been modest thus far. This study examines how terrestrial broadcasters in Gwangju are utilizing YouTube and employs Q methodology to analyze the audience preferences for their YouTube content. The analysis identified three types of audience preferences: "Trend-Sensitive," "Emotionally-Focused," and "Regionally-Attached." Tailored content creation strategies were proposed for each type. This approach not only provides practical guidelines for establishing YouTube strategies for Gwangju's terrestrial broadcasters but also helps to develop policies for producing sustainable and evolving high-quality content in the new media era.

Implementation of High Speed LDPC Decode for Multi-Giga bps Cable Communication Service (Multi-Giga bps 케이블 통신 서비스를 위한 고속 LDPC 복호기 구현)

  • Jung, Joon-Young;Choi, Dong-Joon;Hur, Namho
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 한국방송공학회 2015년도 하계학술대회
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    • pp.301-302
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    • 2015
  • 케이블 방송망에서 멀티-Gbps(Giga bit per second) 초고속 인터넷 서비스 제공을 위해 최근 북미에서 DOCSIS 3.1(Data over Cable Service Interface Specifications Version 3.1) 표준을 발표하였다. DOCSIS 3.1 은 최대 10Gbps 하향 데이터 전송과 최대 2Gbps 의 상향 데이터 전송을 목표로 한다. DOCSIS 3.1 이 이전 DOCSIS 표준들과 다른 점은 전송 효율을 높이기 위해 물리계층 전송 방식에 큰 변화를 주었다는 점이다. 기존 6MHz 대역폭의 단일 반송파 전송 방식에서 최대 192MHz 광역 채널의 다중 반송파 전송 방식으로 변경하였다. 또한 채널 오류정정 방식으로 BCH(Bose, Chaudhuri, and Hocquenghem)와 LDPC(Low Density Parity Check) 연접부호를 적용하여, 이로 인한 SNR 성능 이득 통해 4096-QAM 의 고차 변조를 지원한다. 본 논문에서는 최대 192MHz 의 광역 채널로 전송되는 약 2Gbps 의 전송 데이터에 대한 채널 오류 정정을 위해 고속의 LDPC 복호기 구현 방법을 제시한다.

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Evaluation of Interference Alignment for MIMO-IC based on IEEE 802.11n (IEEE 802.11n 기반 MIMO-IC의 간섭정렬 성능평가)

  • Bae, Insan;Yun, Heesuk;Kim, Jaemoung
    • Journal of Satellite, Information and Communications
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    • 제8권4호
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    • pp.47-52
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    • 2013
  • In this paper, The existing interference alignment algorithms were analyzed in Rayleigh fading channel environment. The interference alignment techniques are divided to two parts. First thing is Iterative-method, another is Linear-method. Iterative method needs local channel info, but it has the constraint of iteration. On the other hand Linear-method must have global channel info, but has free of iteration and better performance. This paper evaluates the performance of interference alignment algorithms in Rayleigh fading channel of outdoor environment and WLAN channel based on IEEE 802.11n of indoor environment.

Strategies of Local Terrestrial Broadcasting Companies since the Introduction of Comprehensive Programming Channels (종합편성채널 도입에 따른 지역 지상파방송 대응 전략)

  • Jeong, Jong-Geon
    • The Journal of the Korea Contents Association
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    • 제11권7호
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    • pp.192-209
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    • 2011
  • This study looked into coping strategies of local terrestrial broadcasting companies in the media market, since the introduction of comprehensive programming channels was confirmed. Local terrestrial broadcasting companies vulnerable to market competitiveness are driven more out to the difficulty of survival in a limited advertising market with the advent of comprehensive programming channel. and Local terrestrial broadcasting receive discriminative application than comprehensive programming channel. They have reverse discrimination in must-carry, broadcasting area, programming regulation, advertisement regulation, broadcasting development fund. Hence, Local terrestrial broadcasting needs diverse countermeasures at difficult media circumstances. Above all, Competitive content reinforcement is desperately needed. That's why content distribution structure needs diversification. And, It is necessary for local terrestrial broadcasting companies to diversify the content distribution system. As a way to expand distribution structure of local broadcasting, the introduction of local programming regulations for total amount will be highlighted in the nationwide network program. The mandatory policy that programs produced by local terrestrial broadcasting companies will be broadcast regularly in prime time through a nationwide network is an example. In addition to developing high content independently, 2nd Multiple channels of distribution is needed. It has to be supplied to various platforms including local broadcasting, SO and etc. In addition, it is necessary to activate regional co-production program between local terrestrial broadcasting companies and regions. Time rate between central stations and local terrestrial broadcasting companies must be distributed practically. And also, local terrestrial broadcasting companies in addition to ad revenue model to themselves and their own businesses by expanding the sponsorship to strengthen the competitiveness will have to nurture self-sustaining. Moreover they must have enlarge economy of scale through widen of broadcasting area.

A Stereo Surround Display Using PC Clusters (PC클러스트를 이용한 스테레오 서라운드 디스플레이)

  • 최정단;변기종;장병태
    • Proceedings of the Korean Information Science Society Conference
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    • 한국정보과학회 2003년도 봄 학술발표논문집 Vol.30 No.1 (B)
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    • pp.226-228
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    • 2003
  • 본 논문은 온라인 VR 게임 엔진의 일환으로 몰입시각화 방법의 구현에 관한 것이다. 몰입영상을 제공하기 위한 방법으로 광역의 시야각을 지원하는 프로젝션 디스플레이 구현과 멀티 채널 디스플레이의 스테레오 서라운드를 지원하기 위한 여러 대의 PC 렌더링 시스템, 그리고 이를 지원하는 애니메이션 동기화 방법에 대한 구현상의 방법을 소개 하고자 한다. 새로운 VR 기술들이 정차 시스템의 저가화에 따라 사용자에게 새로운 몰입형 아케이드 게임 환경을 지원하기에 이르렀다. 본 논문에서는 프로젝션 기법을 사용하여 스테레오 이미지 디스플레이가 가능한 방법과 멀티 채널 시스템을 이용한 멀티 모니터를 이용하는 방법에 대한 구현이다. 구현된 방법은 멀티 클러스터 시스템과 멀티 프로젝션 디스플레이 시스템, 스테레오를 구현 그리고 애니메이션의 동기화를 위한 방법으로 나누어 설명하고자 한다.

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Large-Scale Transport of Air Pollutants in the East Asian Region: Satellite and Ground Observations (동아시아 지역에서 광역적 대기오염의 이동: 위성과 지상 관측)

  • Kim, Hak-Sung;Chung, Yong-Seung
    • Journal of the Korean earth science society
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    • 제28권1호
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    • pp.123-135
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    • 2007
  • Five episodes of the large-scale transport of air pollutants in East Asia and its inflow into the Korean Peninsula have been analyzed through satellite and ground observations. These episodes include regionally polluted continental airmass, which is created by the pollutants produced in the cities and the industrial regions in China, to land on or pass through the Korean Peninsula by way of the Yellow Sea. The analysis of the NOAA satellite observation data made it possible to create images by combining 3 channels of visible and infrared ray ranges and also to identify the distribution and the transport of the air pollution mass over the Yellow Sea. The ground observation data of the air pollutants gathered in Chongwon were found highly valuable in verifying the information in comparison with ones from the satellite. Especially, regarding the episodes of large-scale transport of the air pollutants, the difference of concentration between $PM_{10}\;and\;PM_{2.5}$ was found small with the increase of $PM_{2.5}$ value. The concentration of $PM_{10}$ in the episode of yellows and, however, was found much higher than that of $PM_{2.5}$. In the episode of 27 January 2006, the inflow of the regionally polluted continental air mass into the central and southwestern region of the Korean Peninsula was observed sequentially in the various ground observatories as well as by the satellite. The north-northwest airflow dissipated the clouds over from Mt. Halla in Jeju Island up to far downwind, reduced air pollution, and created von $K\acute{a}rm\acute{a}n$ vortex.

Multi-Channel Data Link Module Design for High Speed Image Data Transmission from Spaceborne SAR (위성 영상 레이다의 고속자료 전송을 위한 멀티 채널 데이터 전송 모듈 설계와 성능 특징)

  • Kwag, Young-Kil
    • Journal of Advanced Navigation Technology
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    • 제5권2호
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    • pp.149-157
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    • 2001
  • A high speed data link capability is one of the critical factors in determining the performance of the spaceborne SAR system with high resolution. It is due to the strict requirement for the real-time data transmission from a series of massive raw image data of spaceborne SAR to the ground station in a limited time of mission. In this paper, based on the data link model characterized by the spaceborne small SAR system, the high rate multi-channel data link module is designed including link storage, link processor, transmitter, and wide-angle antenna. The design results are presented with the performance analysis on the data link budget as well as the multi-mode data rate in association with the SAR imaging mode of operation from high resolution to the wide swath.

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IEEE 802.22 WG에서의 CR응용: WRAN MAC설계

  • Go Gwang-Jin;Hwang Seong-Hyeon;Song Myeong-Seon;Kim Chang-Ju;Gang Beop-Ju
    • The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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    • 제17권2호
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    • pp.38-49
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    • 2006
  • In order to increase the spectrum efficiency, recently, there is the number of studies for CR technology. For instance, IEEE 802.22 WRAN(Wireless Regional Area Network) WG considered the CR technology as a solution of WRAN system to serve the high speed internet service(1.5 Mbps down stream and 384 kbps up stream) in 100 km overall coverage and 54 MHz-746 MHz band. Basically, in MAC point of view, the WRAN system have been standardizing based on the IEEE 802.16 MAC layer features such as Data transmission method, QoS provision and Bandwidth request schemes. Additionally, the WRAN system further include CR nature functions such as incumbent user protection, self coexistence which would be importantly considered. Also, the inherent WRAN functions are added such as channel bonding and fractional bandwidth usage. This paper mainly explained frame structure, IU protection, self coexistence which are key functions of WRAN system. Finally, in this paper, we expressed a prospect of IEEE 802.22 WRAN standardization.

On Efficient Adaptive Equalization of Block Data Transmission Signals (블록 데이터전송 신호에 대한 효율적인 채널등화 기법 연구)

  • 이상경;이재천
    • The Journal of Korean Institute of Communications and Information Sciences
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    • 제28권1C호
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    • pp.37-46
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    • 2003
  • As Information Security Technology has become rather transparent, wide, and integrated than in part, exclusive, and separated, A necessity of the study about integrating the separated distributed security systems into one module, has grown However, there is no integrated framework which can manage all separate security systems as one integrated one yet. Accordingly, we propose a new policy based network admirustrative model in this paper which can integrate individual security systems and distributed control way into one effectively.