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학술대회 Performance Comparison of Mixed Modulation Codewords and Shortened Codewords in DOCSIS 3.1 Cable Modem System
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저자
정준영, 최동준, 허남호
발행일
201501
출처
International Conference on Consumer Electronics (ICCE) 2015, pp.647-648
DOI
https://dx.doi.org/10.1109/ICCE.2015.7066563
협약과제
14MR3500, FTN(Faster Than Nyquist)기반 유무선 방송시스템 고도화 기술 개발, 허남호
초록
This paper provides a performance comparison of mixed modulation codewords and shortened codewords defined in DOCSIS 3.1 specifications. In mixed modulation codewords, the same modulation constellation is not used for all sub-carriers of the OFDM symbol. The performance comparison is needed to decide efficient transmission parameters at the view of signal-to-noise ratio and spectral efficiency. In this paper, we present the more efficient codeword scheme from the comparison.
KSP 제안 키워드
DOCSIS 3.1, Mixed modulation, Performance comparison, Signal noise ratio(SNR), Signal-to-Noise, Spectral efficiency(SE), Sub-carrier, efficient transmission, transmission parameters