The Power of DOCSIS 3.1 Downstream Profiles (2013)
By John T. Chapman, Cisco
DOCSIS 3.1 will offer a more robust PHY that supports technologies such as OFDM and LDPC. With these technologies comes the opportunity to customize modulation profiles for groups of CMs to take advantage of the variation in SNR on an HFC plant.
This paper will explore the use of the modulation profiles in the downstream path.
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