• Journal of Broadcast Engineering
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• v.23 no.6
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• pp.790-799
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• 2018

UHD broadcasting based on ATSC 3.0 is being implemented in Korea, and discussion on mobile broadcasting based on ATSC 3.0 is underway. The ATSC 3.0 standard introduces internet protocol based standards in order to facilitate the implementation of conventional broadcasting services as well as broadcasting and communication convergence services interlocking with communication services. In this process, various requirements for the receiver have been derived, and factors to consider for developing the receiver product have also increased. ATSC 3.0 broadcasting is currently in the introduction stage of the service, and additional technology development and product implementation related to the receiver should proceed until the full-scale market is formed. In this regard, this paper describes the considerations for developing UHD receiver based on ATSC 3.0 and the test procedure for verifying developed receiver.

• Journal of Broadcast Engineering
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• v.22 no.6
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• pp.755-764
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• 2017

In this paper, we design transmitter and receiver structures for a $2{\times}2$ multiple-input multiple-output (MIMO) in ATSC 3.0 systems and analyze the performance of the $2{\times}2$ MIMO system. In the ATSC 3.0 MIMO systems, spatial diversity and multiplexing gains can be obtained using the spatial demultiplexer and precoder. In this paper, we present the structures of the transmitter and receiver for ATSC 3.0 MIMO systems. Also, we present performance results of the $2{\times}2$ MIMO system through computer simulations.

• Journal of Broadcast Engineering
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• v.21 no.6
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• pp.899-912
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• 2016

In ATSC 3.0 systems, a bootstrap signal is located at the start of each frame. In this paper, we propose an initial synchronization scheme for ATSC 3.0 systems using the bootstrap signal. The bootstrap signal of ATSC 3.0 has several repetition patterns in the time domain. By utilizing the repetition patterns within the bootstrap, the proposed scheme can obtain an initial synchronization at the receiver. Also, simulation results show that the proposed scheme can obtain an initial synchronization at very low signal-to-noise ratios.

• Electronics and Telecommunications Trends
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• v.36 no.6
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• pp.25-35
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• 2021

ATSC 3.0 is a next-generation terrestrial broadcasting standard that provides various functions and improved performance compared to the existing ATSC 1.0 High Definition standard. Based on the ATSC 3.0 broadcast system with IP-centric transport and coherence, it can provide personalized and personalized interactive services to TV viewers. However, the broadcasting system still has a structural limitation in that the service is deployed separately from broadcasters who are allocated a specific frequency and is expected to have different spectrum allocation for each market. To overcome this structural limitation and provide improved services compared with the current ATSC 3.0, preliminary studies were conducted to apply the core network concept of a communication network (particularly 5G) to ATSC 3.0 broadcasting. Finally, in february of this year, the ATSC TG3/S43 group for the development of the ATSC 3.0 Broadcast Core Network (BCN) standard was launched. This paper describes the background and current status of BCN standardization by ATSC TG3/S43, and future standardization prospects.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2018.06a
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• pp.152-155
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• 2018

국내에서는 ATSC 3.0 기반의 UHD 방송이 실시되고 있으며 ATSC 3.0 기반의 이동방송에 대해서도 논의가 진행되고 있다. ATSC 3.0 규격은 기존의 전통적인 방식의 방송 서비스뿐만 아니라 통신서비스와 연동된 방송통신융합 서비스의 구현을 용이하기 위해 IP 규격을 대거 도입하였다. 이러한 과정에서 수신기에 대한 다양한 요구사항이 도출되어 있고 수신기 제품을 개발하기 위해 고려해야 할 요소들도 증가하게 되었다. ATSC 3.0 방송은 현재 서비스의 도입 단계이고 본격적인 시장이 형성되는 과정까지 수신기와 관련된 추가적인 기술개발 및 제품 구현이 진행되어야 하는 상태이다. 이와 관련하여 본 논문에서는 ATSC 3.0 기반의 UHD 수신기를 개발하기 위해 고려해야 할 사항들과 개발된 수신기를 검증하기 위한 시험 과정을 기술한다.

• Broadcasting and Media Magazine
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• v.20 no.4
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• pp.46-57
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• 2015

ATSC 3.0은 세계 최초의 IP 기반 지상파 방송 시스템으로 전통적인 방송 시스템에서 고려되지 않았던 혁신적인 기술들을 포함하고 있다. ATSC 3.0 표준을 준수하는 방송 시스템은 유연한 서비스 구성 및 개인형 서비스의 공급이 가능하여 미디어 환경 변화에 따른 시청자들의 다양한 요구를 충족시킬 수 있을 것으로 기대되고 있다. 본 논문에서는 ATSC 3.0의 IP 기반 하이브리드 전송 기술 및 컴페니온 스크린 기술에 대하여 분석한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2016.06a
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• pp.297-299
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• 2016

본 논문에서는 ATSC 3.0 규격에서 정의되는 부트스트랩 신호를 이용한 수신기 동기 방식에 대해서 소개한다. ATSC 3.0 방송 신호의 프레임에 앞서서 전송되는 부트스트랩 신호는 시간영역에서 반복되는 구조를 가지므로 이를 이용하여 수신기에서 타이밍 및 주파수 동기를 획득할 수 있다. 본 논문에서는 부트스트랩 신호의 시간영역의 반복구조를 이용하여 수신기에서 타이밍 및 주파수 동기 획득 방법을 제시한다.

• Journal of Broadcast Engineering
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• v.24 no.6
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• pp.928-938
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• 2019

Republic of Korea has established 'Transmission and Reception for Terrestrial UHDTV Broadcasting Service' standard based on ATSC 3.0, the next-generation broadcasting standard in North America and is now providing commercial services. Republic of Korea has been studying terrestrial UHDTV based disaster broadcasting service using the ATSC 3.0 AEA system's technology since 2018. ATSC 3.0 has established a standard for expanding disaster broadcasting services, which were used to be simple push-type text message broadcasting, by introducing bidirectional and rich-media transporting mechanisms. However, the disaster information is still focused on the general public, and disaster broadcasting service including detailed information for the vulnerable are still insufficient. In this paper, we proposed the optimized disaster broadcasting service for vulnerable populations based on ATSC 3.0 after defined the disaster vulnerable populations as the target of the service. And we defined the extension element of disaster broadcasting message for service provision. The proposed service can be an effective means to increase the possibility of disaster information reception and evacuation to vulnerable populations. In addition, it is expected to be used as a basic research for development of diverse and effective advanced services for vulnerable populations through linkage with existing disaster alerting and countermeasures studies.

• Convergence Security Journal
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• v.20 no.3
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• pp.47-52
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• 2020

The introduction of virtualization technology in the broadcasting field is actively progressing broadcasting service automation and intelligence based on the effective operation of IT resources throughout the broadcasting industry ecosystem. In recent years, there is increasing interest in increasing the flexibility of various broadcasting resources and increasing the efficiency of interworking with other networks through network virtualization of the broadcasting network infrastructure. The fundamental transformation from the broadcasting network to the IP paradigm is facing a situation where it is necessary to solve various problems for the effective interworking of Internet-based service platforms and 5G networks and the development of new convergence services. In other words, for organic and effective interworking with the next-generation broadcasting network represented by ATSC 3.0, a mobile communication network represented by 5G, and the Internet, a number of difficulties must be solved. In this paper, the basic technology and status for the convergence of ATSC 3.0 broadcasting network and mobile communication network represented by 5G was examined, and a plan for the ATSC 3.0 broadcasting network and 5G network to interwork with each other as a network was described.

• Journal of Broadcast Engineering
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• v.24 no.4
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• pp.643-659
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• 2019

In this paper, the technology verification of next generation broadcasting technology and service suitable for domestic broadcasting environment was carried out to build and activate domestic terrestrial UHD broadcasting. ATSC 3.0-based mobile HD broadcasting is currently conducting experiments with various parameters from broadcasting companies, research institutes and others. However, experiments on integrated transmissions, including audio services, have not been carried out. Through this experiment, we first performed the theory and experiment on the maximum number of ATSC 3.0 based UHD broadcasting service, maximum service number of HD broadcasting considering mobility, and maximum service number of audio broadcasting within one channel (6MHz). Second, parameters for integrated transmission of each service (UHD broadcasting, mobile HD and audio broadcasting) in one channel were derived. Finally, we studied technical possibilities through field tests that we receive while moving directly in the field.