Title :
Performance comparison of mixed modulation codewords and shortened codewords in DOCSIS 3.1 cable modem system
Author :
Joon-Young Jung ; Dong-Joon Choi ; Namho Hur
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon, South Korea
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.
Keywords :
OFDM modulation; cable television; modems; DOCSIS 3.1 cable modem system; OFDM symbol; mixed modulation codewords; modulation constellation; performance comparison; signal-to-noise ratio; spectral efficiency; transmission parameters; Bit error rate; Encoding; Forward error correction; Modulation; OFDM; Parity check codes; Signal to noise ratio;
Conference_Titel :
Consumer Electronics (ICCE), 2015 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4799-7542-6
DOI :
10.1109/ICCE.2015.7066563
