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DOCSIS employs a mixture of deterministic access methods for upstream transmissions, specifically time-division multiple access (TDMA) for DOCSIS 1.0/1.1 and both TDMA and S-CDMA for DOCSIS 2.0 and 3.0, with a limited use of contention for bandwidth reservation requests. In TDMA, a cable modem requests a time to transmit and the CMTS grants it ...
Wireless devices, BPL, and modems may produce a higher line rate or gross bit rate, due to error-correcting codes and other physical layer overhead. It is extremely common for throughput to be far less than half of theoretical maximum, though the more recent technologies (notably BPL) employ preemptive spectrum analysis to avoid this and so ...
Every connector has a finite number of channels it can carry, such as 16 channels per downstream connector, and 4 channels per upstream connector, depending on the CMTS. [2] For example, if the cable modems on every service group use 24 channels for downstream, and 2 channels for upstream, then 3 downstream connectors can service the cable ...
A cable modem at the customer is connected via coaxial cable to an optical node, and thus into an HFC network. An optical node serves many modems as the modems are connected with coaxial cable to a coaxial cable "trunk" via distribution "taps" on the trunk, which then connects to the node, possibly using amplifiers along the trunk.
Here are our recommendations for the best modems for gaming to achieve peak connectivity. There’s nothing more infuriating than a spotty internet connection. Here are our recommendations for the ...
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, [72] [73] have transitioned to only handling IP traffic in the network thus eliminating dedicated video RF channels, used digital transport adapters (DTAs) for ...
Tri-band LTE modem (800 MHz, 1800 MHz, 2600 MHz) FRITZ!Box 6842 LTE LTE — 4 Gigabit b/g/n 2.4 300 1 USB 2.0 Integrated a/b 1 0 6.35 Tri-band LTE modem (800 MHz, 1800 MHz, 2600 MHz); German version only FRITZ!Box Fon WLAN 7050 ADSL2+ — 2 Fast b/g 2.4 54 1 USB 1.0 — a/b, S 0: 3 1 — 4.26 (en) 4.33 (de) FRITZ!Box Fon WLAN 7112 ADSL2+ — 1 ...
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 ...
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