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학술대회 Channel Estimation: Key Factor for LDM based Local Content Delivery on SFNs
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저자
Jon Montalban, Eneko Iradier, Pablo Angueira, 박성익, 권선형, 허남호
발행일
201806
출처
International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) 2018, pp.1-6
DOI
https://dx.doi.org/10.1109/BMSB.2018.8436729
협약과제
18HR2200, 초고품질 UHD (UHQ) 전송 기술 개발, 허남호
초록
Local Service Insertion (LSI) on Single Frequency Networks (SFN) is an attractive business case for broadcasters. Nevertheless, its practical implementation imposes a technical challenge from the spectral efficiency point of view, which has not been fully overcome yet. Recently, Layered Division Multiplexing (LDM) has been proposed as a solution to face this problem. LDM is one of the tools included in the ATSC 3.0 physical layer that enables an efficient multiple service delivery, making a simultaneous use of the whole time and frequency resources. Under certain configurations, LDM is a potential enabler for the LSI contents delivery, conveying the regional and local services on different layers. In this approach, the complexity and performance of the channel estimation procedures represent a key factor for the commercial success of receivers. Therefore, the main objective is to evaluate the the existing channel estimation procedures in a fully compliant ATSC 3.0 simulation set-up for the LDM-LSI scenario.
KSP 제안 키워드
ATSC 3.0, Business Case, Channel estimation(CE), Contents delivery, Different layers, Fully compliant, Key factor, Local Service Insertion, Local content delivery, Physical Layer, Practical implementation