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Subject

Design and Implementation of Transmission Scheduler for Terrestrial UHD Contents
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지상파 UHD 콘텐츠 전송 스케줄러 설계 및 구현

논문 기본 정보

Type
Academic journal
Author
Jong-Ho Paik (서울여자대학교) Minjae Seo (서울여자대학교) Kyung-A Yu (피앤피네트워크)
Journal
The Korean Society Of Broad Engineers JOURNAL OF BROADCAST ENGINEERING Vol.24 No.1 KCI Accredited Journals
Published
2019.1
Pages
118 - 131 (14page)

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Design and Implementation of Transmission Scheduler for Terrestrial UHD Contents
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Abstract· Keywords

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In order to provide 8K UHD contents of terrestrial broadcasting with a large capacity, the terrestrial broadcasting system has various problems such as limited bandwidth and so on. To solve these problems, UHD contents transmission technology has been actively studied, and an 8K UHD broadcasting system using terrestrial broadcasting network and communication network has been proposed. The proposed technique is to solve the limited bandwidth problem of terrestrial broadcasting network by segmenting 8K UHD contents and transmitting them to heterogeneous networks through hierarchical separation. Through the terrestrial broadcasting network, the base layer corresponding to FHD and the additional enhancement layer data for 4K UHD are transmitted, and the additional enhancement layer data corresponding to 8K UHD is transmitted through the communication network. When 8K UHD contents are provided in such a way, user can receive up to 4K UHD broadcasting by terrestrial channels, and also can receive up to 8K UHD additional communication networks. However, in order to transmit the 4K UHD contents within the allocated bit rate of the domestic terrestrial UHD broadcasting, the compression rate is increased, so a certain level of image deterioration occurs inevitably. Due to the nature of UHD contents, video quality should be considered as a top priority over other factors, so that video quality should be guaranteed even within a limited bit rate. This requires packet scheduling of content generators in the broadcasting system. Since the multiplexer sends out the packets received from the content generator in order, it is very important to make the transmission time and the transmission rate of the process from the content generator to the multiplexer constant and accurate. Therefore, we propose a variable transmission scheduler between the content generator and the multiplexer to guarantee the image quality of a certain level of UHD contents in this paper.

Contents

요약
Abstract
Ⅰ. 서론
Ⅱ. 관련연구
Ⅲ. 지상파 UHD 콘텐츠 전송 스케줄러 설계
Ⅳ. 모의실험 및 결과
Ⅴ. 결론
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UCI(KEPA) : I410-ECN-0101-2019-567-000432861