• Title/Summary/Keyword: TV networks

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Considerations of supporting seamless mobility to mobile user in Mobile IPTV environments (Mobile IPTV 환경에서 모바일 사용자에게 끊김없는 이동성 제공을 위한 고려사항)

  • Lee, Sung-Hyup;Kwon, Sun-Young;Jang, Won-Gyu;Park, Tae-Og
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2010.07a
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    • pp.321-322
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    • 2010
  • Mobile IPTV lets mobile users transmit and receive multimedia traffic, such as TV signals, audio, text and graphics, through IP-based networks with the support of quality of service(QoS) and quality of experience(QoE), mobility and interactivity [1]. To provide service feasibility, QoS and seamless mobility to mobile users, we consider mobility prediction, link stability, service requirements to develop resource reservation scheme in mobile IPTV environments. Thus, we study for mobility prediction and QoS-guaranteed mobile IPTV service prior to develop the resource reservation scheme.

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CBS Emergency Alert Broadcasting Service based on Cellular Networks (이동통신망을 이용한 CBS 재난문자방송 서비스)

  • Chang, Sekchin;Choi, Sung Jong
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2011.07a
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    • pp.160-161
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    • 2011
  • 최근 IT 기술의 발전으로 TV, DMB, 이동통신망 등을 이용한 효율적인 재난문자방송 서비스가 국내외에서 관심을 받고 있다. 특히. 이동통신망은 지역단위 전송이 가능하기 때문에 지진, 해일 등의 심각한 재난이 예상되는 지역에 신속한 경보 서비스를 가능하게 해준다. 국내에서는 이미 2G 이동통신망을 이용하여 대국민 재난문자방송 서비스를 실시하였다. 그러나 국내외적으로 3G/4G 이동통신망 서비스가 본격화 되었으며, 이에 맞는 재난문자방송 서비스가 필요한 실정이다. 이에 본 논문에서는 이동통신망을 이용한 재난문자방송 서비스인 CBS의 국내외 동향과 표준안 등을 소개하며, 국내 CBS의 향후 나아갈 방향을 제시하고자 한다.

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Design and Implementation of Super-peer P2P Overlay Network Protocol and System for mobile IPTV

  • Kim, Yu-Doo;Moon, Il-Young
    • 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.

Analysis of Field Test Results of Digital TV On-Channel Repeaters (지상파 DTV 동일채널 중계기 필드테스트 결과 분석)

  • 서영우;목하균;권태훈
    • Journal of Broadcast Engineering
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    • v.7 no.1
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    • pp.10-20
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    • 2002
  • In order to fill the gaps in DTV coverage, KBS Technical Research Institute has researched on DTV on-channel repeating systems as well as DTV translators. The on-channel repeater can reuse frequency resources for expanding service coverage. but it has also many restricts in applications for ATSC DTV system. Thiss Paper compares two kinds of DTV on-channel repealer systems and also presents field test results of both systems. From these results, we Infer their characteristics and summarize the conditions and possibilities of the application for our broadcasting networks.

A Requirement Analysis on IPTV over Next Generation Networks (NGN에서 IPTV 서비스를 위한 요구사항 및 문제점 분석)

  • Lee, Seung-Ik;Lee, Dong-Man;Park, Ju-Young;Kang, Shin-Gak
    • Proceedings of the Korean Information Science Society Conference
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    • 2006.10d
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    • pp.106-111
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    • 2006
  • 현재 다양한 상용망에서 끊김 없이 동일 서비스를 이용하고자 하는 사용자의 요구를 충족시키기 위해서 상용망을 IP 프로토콜로 융합하는 차세대 인터넷, 즉 NGN (Next Generation Network) 망이 도입되었다. 이와 같이 연결망의 대역폭이 확장되면서 다양한 멀티미디어 서비스에 대한 요구가 늘어나게 되고 나아가 실시간 TV 스트리밍 서비스에 대한 요구가 극대화되었다. 본 논문에서는 NGN과 IPTV의 서비스 정의 및 요구 사항을 분석하여 NGN의 응용 서비스로서 사용되기 위한 IPTV 서비스의 필요 요건이 무엇인지를 도출하였다. 나아가 NGN의 이동성 및 다양성 등의 특성에 따른 전송 경로의 다양화, 손실 차별화, 서비스 끊김 등의 문제점을 도출하고 이를 해결하기 위해 고려해야 하는 연구 이슈 및 방향 등에 대해 기술한다.

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A Hand Posture Recognition Technique Using A Circular Hough Transform and Convolution Neural Networks (원형호프변환과 CNN 모델을 이용한 수신호 인식기법)

  • Lee, Jin-Seok;Park, Jin-Hee;Kim, Ho-Joon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2006.11a
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    • pp.43-46
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    • 2006
  • 본 논문에서는 호프변환을 이용한 실시간 수신호 인식시스템에서 대상영역 분할의 오차와 추출된 특징의 위치 변화등의 영향을 개선하는 방법론을 제안한다. 원형호프변환을 기반으로 생성한 특징정보로부터 CNN(Convolution Neural Network) 모델의 계층적 구조를 통하여 단계적으로 일련의 특징지도가 추출된다. CNN 모델에서 샘플링 계층의 연결구조는 특징의 위치 변화에 강인한 추출기능을 지원하며, 상위계층에서 보다 함축적인 특징지도를 생성하게 된다. 원형 호프 변환은 손의 형태학적 주요 포인트를 효과적으로 추출할 수 있게 하고 또한 입력 영상의 회전으로 인한 제약을 극복할 수 있게 한다. 본 연구에서는 제안된 이론을 TV 원격 제어를 위한 수신호 인터페이스 시스템을 대상으로 적용함으로써 그 유용성을 고찰한다.

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A Study of Effects of Product Placement(PPL) on Brand Image (제품배치(PPL)가 브랜드 이미지에 미치는 영향에 관한 연구)

  • Lee, Hyun-Mi;Cho, Jai-Rip
    • Proceedings of the Korean Society for Quality Management Conference
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    • 2006.04a
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    • pp.114-119
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    • 2006
  • Brand placement, or product placement(PPL) is one of alternative promotion means of the traditional advertising communication type, and its effectiveness is getting begger because of the increase of movies, video media, and TV networks. The product placement is a new type of advertising communication means that pays the price in the movies definitely. This study is a research on the effect of the product placement on the consumption behavior and brand image.

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A Study on Cognition about Personal Broadcasting

  • Lee, Yong-Whan
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.9
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    • pp.27-34
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    • 2018
  • Personal media centered on blogs, Twitter, and Facebook has opened up a personal broadcasting area while meeting platforms such as YouTube and Africa TV. Due to the many advantages and disadvantages of personal broadcasting, a study on it was necessary and statistical survey was conducted. The study conducted opinion survey of 118 university students on personal broadcasting. As a result, we are getting news using smartphones and mainly watching videos through YouTube, and watching videos type in the order of games, music videos and sports. Satisfaction rate of video was 72.4%, 80.2% of survey did not use paid services, experiences about personal broadcasting was 96.6% and 90.5% of survey the prospect of person broadcasting of the opinion that "it will be expanded". The first thing we want to be improved in personal broadcasting is the prevention of abusive language and hate speech. Second, we were reluctant to sensational content. Third, the survey results are the improvement of excessive advertising.

Social Media Marketing Strategy

  • Nam, Jeongjung;Kang, Min Jung
    • International Journal of Internet, Broadcasting and Communication
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    • v.14 no.1
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    • pp.219-223
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    • 2022
  • The Internet can deliver various information and services at the lowest cost without time and space constraints while targeting the world among all existing means of communication. Unlike traditional media such as TV, newspapers, and radio in the past, promotions through mobile environments allow target customers to use two-way low-cost, high-efficiency promotional strategies regardless of time and place. With the development of the Internet, social media has developed into a place to acquire information about favorite companies and their products. Social media greatly contributes to the production of text, photos, videos, and various networks, and has expanded global communication and communication media through the interaction and sharing of various information. In addition, through social media, users can communicate in various ways, reveal themselves, and share and exchange information such as knowledge and personal thoughts. In line with these changes, corporate marketers and sellers are striving to provide consumers with appropriate information more quickly. We aims to find out about social media marketing strategies useful for companies.

Clustering Method based on Genre Interest for Cold-Start Problem in Movie Recommendation (영화 추천 시스템의 초기 사용자 문제를 위한 장르 선호 기반의 클러스터링 기법)

  • You, Tithrottanak;Rosli, Ahmad Nurzid;Ha, Inay;Jo, Geun-Sik
    • Journal of Intelligence and Information Systems
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    • v.19 no.1
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    • pp.57-77
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    • 2013
  • Social media has become one of the most popular media in web and mobile application. In 2011, social networks and blogs are still the top destination of online users, according to a study from Nielsen Company. In their studies, nearly 4 in 5active users visit social network and blog. Social Networks and Blogs sites rule Americans' Internet time, accounting to 23 percent of time spent online. Facebook is the main social network that the U.S internet users spend time more than the other social network services such as Yahoo, Google, AOL Media Network, Twitter, Linked In and so on. In recent trend, most of the companies promote their products in the Facebook by creating the "Facebook Page" that refers to specific product. The "Like" option allows user to subscribed and received updates their interested on from the page. The film makers which produce a lot of films around the world also take part to market and promote their films by exploiting the advantages of using the "Facebook Page". In addition, a great number of streaming service providers allows users to subscribe their service to watch and enjoy movies and TV program. They can instantly watch movies and TV program over the internet to PCs, Macs and TVs. Netflix alone as the world's leading subscription service have more than 30 million streaming members in the United States, Latin America, the United Kingdom and the Nordics. As the matter of facts, a million of movies and TV program with different of genres are offered to the subscriber. In contrast, users need spend a lot time to find the right movies which are related to their interest genre. Recent years there are many researchers who have been propose a method to improve prediction the rating or preference that would give the most related items such as books, music or movies to the garget user or the group of users that have the same interest in the particular items. One of the most popular methods to build recommendation system is traditional Collaborative Filtering (CF). The method compute the similarity of the target user and other users, which then are cluster in the same interest on items according which items that users have been rated. The method then predicts other items from the same group of users to recommend to a group of users. Moreover, There are many items that need to study for suggesting to users such as books, music, movies, news, videos and so on. However, in this paper we only focus on movie as item to recommend to users. In addition, there are many challenges for CF task. Firstly, the "sparsity problem"; it occurs when user information preference is not enough. The recommendation accuracies result is lower compared to the neighbor who composed with a large amount of ratings. The second problem is "cold-start problem"; it occurs whenever new users or items are added into the system, which each has norating or a few rating. For instance, no personalized predictions can be made for a new user without any ratings on the record. In this research we propose a clustering method according to the users' genre interest extracted from social network service (SNS) and user's movies rating information system to solve the "cold-start problem." Our proposed method will clusters the target user together with the other users by combining the user genre interest and the rating information. It is important to realize a huge amount of interesting and useful user's information from Facebook Graph, we can extract information from the "Facebook Page" which "Like" by them. Moreover, we use the Internet Movie Database(IMDb) as the main dataset. The IMDbis online databases that consist of a large amount of information related to movies, TV programs and including actors. This dataset not only used to provide movie information in our Movie Rating Systems, but also as resources to provide movie genre information which extracted from the "Facebook Page". Formerly, the user must login with their Facebook account to login to the Movie Rating System, at the same time our system will collect the genre interest from the "Facebook Page". We conduct many experiments with other methods to see how our method performs and we also compare to the other methods. First, we compared our proposed method in the case of the normal recommendation to see how our system improves the recommendation result. Then we experiment method in case of cold-start problem. Our experiment show that our method is outperform than the other methods. In these two cases of our experimentation, we see that our proposed method produces better result in case both cases.