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학술대회 Reception Complexity and Power Consumption Reduction with ASK in 3-layer LDM
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배재휘, 권선형, 김영수, 허남호, 최동준, 김호재, 김형남
International Conference on Consumer Electronics (ICCE) 2019 : Berlin, pp.1-6
19HR2400, 초고품질 UHD (UHQ) 전송 기술 개발, 허남호
In this paper a 3-layer layer division multiplexing based on amplitude shift keying(ASK) is proposed. The proposed 3-layer LDM modulation inserts a new ASK modulated signal between core layer and enhanced layer in 2-layer LDM in ATSC 3.0 system. Thus the proposed method has advantages in the reception of the newly added ASK signal, which has a simple signal processing in removing the upper layer QPSK signal from the received 3-layer LDM signal using the known magnitude information of QPSK. Therefore, the receiver of the proposed 3-layer LDM method is to have advantages in reducing the hardware complexities and the power consumptions. Therefore, it has a high possibility to be applied for a mobile broadcasting to handheld mobile devices with a limited battery power.
KSP 제안 키워드
ATSC 3.0, Handheld mobile devices, Layer Division Multiplexing(LDM), Magnitude information, Mobile Broadcasting, Modulated signal, Power consumption reduction, QPSK signal, Signal Processing, amplitude shift keying(ASK), battery power