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DOCSIS 3.1 uses channel bandwidths of up to 192 MHz in the downstream. [15] Upstream: DOCSIS 1.0/1.1 specifies channel widths between 200 kHz and 3.2 MHz. DOCSIS 2.0 & 3.0 specify 6.4 MHz, but can use the earlier, narrower channel widths for backward compatibility. DOCSIS 3.1 uses channel bandwidths of up to 96 MHz in the upstream. Modulation:
The charts below compare hardware and firmware features in ... FRITZ!Box 6490 Cable Cable DOCSIS 3.0 and lower ... 3 1 — 4.26 (en) 4.33 (de) FRITZ!Box Fon WLAN 7112 ...
The Multimedia over Coax Alliance (MoCA) is an international standards consortium that publishes specifications for networking over coaxial cable.The technology was originally developed to distribute IP television in homes using existing cabling, but is now used as a general-purpose Ethernet link where it is inconvenient or undesirable to replace existing coaxial cable with optical fiber or ...
In this "comparison" chart, DOCSIS 3.0 maximum download throughput is stated to be 1Gbps. Where does this 1Gbps figure come from? At 42.88 Mbps per 6MHz channel for 256-QAM, that means the maximum number of bonded channels is 24. 24 x 42.88 == 1029.12 Mbps.
These packets are carried on data streams that are typically modulated onto a TV channel using either 64-QAM or 256-QAM versions of quadrature amplitude modulation. Upstream data (data from cable modems to the headend or Internet) is carried in Ethernet frames encapsulated inside DOCSIS frames modulated with QPSK , 16-QAM, 32-QAM, 64-QAM or 128 ...
Most DOCSIS cable modems restrict upload and download rates, with customizable limits. These limits are set in configuration files which are downloaded to the modem using the Trivial File Transfer Protocol , when the modem first establishes a connection to the provider's equipment. [ 6 ]
DVB-C2, an enhanced version of the DVB-C digital cable TV standard; Power line communication (PLC) ITU-T G.hn, a standard which provides high-speed local area networking of existing home wiring (power lines, phone lines and coaxial cables) [13] TrailBlazer telephone line modems; Multimedia over Coax Alliance (MoCA) home networking; DOCSIS 3.1 ...
To cope with needs for increased digital bandwidth such as for DOCSIS internet, cable operators have implemented expansions in the RF spectrum in HFC networks beyond 1 GHz to 1.2 GHz, [71] [72] have transitioned to only handling IP traffic in the network thus eliminating dedicated video RF channels, used digital transport adapters (DTAs) for ...