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Conference Paper
Performance Comparison of Mixed Modulation Codewords and Shortened Codewords in DOCSIS 3.1 Cable Modem System
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- Authors
- Joon-Young Jung, Dong-Joon Choi, Namho Hur
- Issue Date
- 2015-01
- Citation
- International Conference on Consumer Electronics (ICCE) 2015, pp.647-648
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- 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 Keywords
- DOCSIS 3.1, Mixed modulation, Performance comparison, Signal noise ratio(SNR), Signal-to-Noise, Spectral efficiency(SE), Sub-carrier, efficient transmission, transmission parameters