ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Cloud Transmission: System Performance and Application Scenarios
Cited 57 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
Jon Montalban, Liang Zhang, Unai Gil, Yiyan Wu, Itziar Angulo, Khalil Salehian, 박성익, Bo Rong, Wei Li, 김흥묵, Pablo Angueira, Manuel Velez
발행일
201406
출처
IEEE Transactions on Broadcasting, v.60 no.2, pp.170-184
ISSN
0018-9316
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TBC.2014.2304153
협약과제
14MR9100, (통합)융합형 실감방송 서비스 및 전송 기술 개발, 허남호
초록
Cloud transmission (Cloud Txn) is a flexible multilayer system that uses spectrum overlay technology to simultaneously deliver multiple program streams with different characteristics and robustness for different services (mobile TV, HDTV, and UHDTV) in one radio frequency channel. Cloud Txn is a multilayer transmission system like layered-division multiplexing. The transmitted signal is formed by superimposing a number of independent signals at desired power levels to form a multilayered signal. The signals of different layers can have different coding, bit rate, and robustness. The upper layer system parameters are chosen to provide very robust transmission that can be used for high-speed mobile broadcasting. The bit rate is traded for powerful coding and robustness so that the signal-to-noise ratio (SNR) threshold at the receiver is in the range of -2 to -3 dB. The top layer is designed to withstand combined noise, co-channel interference and multipath distortion power levels higher than the desired signal power. The lower-layer signal can be a DVB-T2 signal or another new system to deliver HDTV/UHDTV to fixed receivers. The system concept is open to technological advances that might come in the future: BICM/non uniform-QAM, rotated constellations, time frequency slicing or MIMO techniques can be implemented in the Cloud Txn lower (high data rate) layer. The system can have backward compatible future extensions, adding more lower layers for additional services without impact legacy services. This paper describes the performance of Cloud Txn broadcasting system. © 1963-12012 IEEE.
키워드
Cloud transmission (Cloud Txn), LDPC, MBMS, single frequency network, spectrum re-use friendly system, terrestrial broadcasting
KSP 제안 키워드
Application scenarios, Backward Compatible, Bit Rate, Broadcasting system, Cloud Transmission, DVB-T2, Different layers, Distortion power, High data rate, High-speed mobile, Mobile Broadcasting