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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 ...
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 ...
A cable modem termination system (CMTS, also called a CMTS Edge Router) [1] is a piece of equipment, typically located in a cable company's headend or hubsite, which is used to provide data services, such as cable Internet or Voice over IP, to cable subscribers. A CMTS provides similar functions to a DSLAM in DSL or an OLT in a PON.
The fiberoptic trunk lines provide enough bandwidth to allow additional bandwidth-intensive services such as cable internet access through DOCSIS. So some or most if not all television channels may be used instead to transmit internet to customers. [3] Bandwidth is shared among users of an HFC. [4] Encryption is used to prevent eavesdropping. [5]
If the HFC network is large, the cable modem termination system can be grouped into hubs for efficient management. Several standards have been used for cable internet, but the most common is DOCSIS. [1] A cable modem at the customer is connected via coaxial cable to an optical node, and thus into an HFC network.
On March 6, 2018 WOW! announced that they had deployed DOCSIS 3.1 to 95% of their footprint, one of the first cable operators to reach that near-ubiquitous threshold. [ 20 ] On June 30, 2021 WOW! stated that it is selling its Cleveland and Columbus, Ohio, service areas to Atlantic Broadband (since renamed Breezeline ) for $1.13 billion; [ 21 ...
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