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학술지 Signal Cancellation Techniques for RF Watermark Detection in ATSC Mobile DTV System
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저자
Bo Rong, 박성익, Yiyan Wu, 김흥묵, 김정창, Gilles Gagnon, Xianbin Wang
발행일
201110
출처
IEEE Transactions on Vehicular Technology, v.60 no.8, pp.4070-4076
ISSN
0018-9545
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TVT.2011.2163178
협약과제
10MR2900, 지상파 DTV 전송효율 고도화 기술개발, 김흥묵
초록
The popularity of Advanced Television System Committee (ATSC) mobile digital television (DTV) [mobile/handheld (M/H)] cultivates a fast growing demand on transmitter identification (TxID) in a mobile environment. The ATSC A/110 standard addresses this need with a TxID system using a radio-frequency (RF) watermark. This paper studies the use of DTV signal cancellation techniques in RF watermark detection. In particular, we develop two schemes, namely, decision feedback convolution and decision feedback equalizer (DFE) decision-directed (DD) error, to meet different application scenarios. The first scheme is designed for static and slow-fading channels, whereas the second scheme is designed for dynamic and fast-fading channels. We have conducted computer simulation on TxID over various channel conditions to evaluate the performance of our schemes. Numerical results show that DTV signal cancellation can significantly boost the signal-to-noise (SNR) level of RF watermark and thus reinforce TxID in a mobile environment. © 2011 IEEE.
키워드
Advanced Television Systems Committee (ATSC), mobile digital television (DTV), radio-frequency (RF) watermark, signal cancellation, transmitter identification (TxID)
KSP 제안 키워드
Advanced television systems committee(ATSC), Application scenarios, Computer simulation(MC and MD), Numerical results, Radio Frequency(RF), Signal-to-Noise, Transmitter Identification, channel condition, decision feedback equalizer, digital television(DTV), fast fading channels