02-09-2017, 11:47 AM
Demand for high-speed (or broadband) Internet access for fast web browsing and most effective teleworking. India has a cable penetration of 80 million homes, offering a vast network to take advantage of Internet access. Cable TV has a strong reach to homes and therefore offering Internet via cable could be a scope to promote the growth of Internet usage in homes. Cable is an alternative means for the delivery of the Internetservices in the US, there are already one million homes with cable modems, allowing high-speed cable Internet access. In India, we are in the initial stages. Internet access on public switched telephone networks (PSTN) still has many problems. Just like the drops of your take over time to download or upload large files onehas to pay for both internet connection as well as for phone uses during that period. Since it is technically possible to offer greater bandwidth for your cable, you can do as it does. Many people can not afford a PC on their premises. Hardware obsolescence in the main problem for the home user who can not afford to upgrade their PC every year and cable TV based ISP solution offer an economical alternative. Connection to other equipment is possible with the help of ISP (Internet ServiceProvider). Each Internet user depends on dial-up connections to connect to the Internet. This has many disadvantages like very low speed, can reduce time, etc. To solve this problem, the Internet datacan can be transferred over cable networks connected to the user's computer. The Internet through Cablenetworks has several advantages such as high availability, high bandwidth at low cost, high speed data access, always in connectivity, etc.KITE college of professional engineering and science.
In telecommunications, cable Internet access, abbreviated to cable Internet, is a form of broadband Internet access in which the infrastructure is the same as a cable television. Like the digital subscriber line and fiber services facilities, cable Internet access provides network edge connectivity (last mile access) from the Internet service provider to an end user. It integrates into the cable television infrastructure in a manner analogous to DSL that uses the existing telephone network. Cable TV networks and telecommunications networks are the two predominant forms of residential Internet access. Recently, both have seen greater competition for fiber deployments, wireless and mobile networks.
Broadband cable Internet access requires a cable modem at the customer's premises and a cable modem termination system (CMTS) at a cable operator facility, usually a cable TV header. The two are connected through a coaxial cable or a hybrid fiber coaxial (HFC) plant. Although access networks are sometimes referred to as last mile technologies, cable internet systems can operate normally where the distance between the modem and the termination system is up to 160 kilometers. If the HFC network is large, the cable modem termination system can be grouped into hubs for efficient management.
Downstream, the direction to the user, bit rates can be as much as 400 Mbit / s for business connections, and 250 Mbit / s for residential service in some countries, although Gigabit speeds are becoming available. Upstream traffic originating from the user ranges from 384 kbit / s to more than 20 Mbit / s. A downstream channel can handle hundreds of cable modems. As the system grows, the CMTS can be upgraded with more downstream and upstream ports and grouped into hub CMTS for efficient management.
Most data cable service interface specification (DOCSIS) cable modems restrict upload and download rates, with customizable limits. These limits are set in configuration files that are downloaded to the modem using the Trivial File Transfer Protocol, when the modem first establishes a connection to the provider's computer. Some users have attempted to override the bandwidth limit and gain access to the system's full bandwidth (often up to 30 Mbit / s) by uploading its own configuration file to the cable modem - a process called decoupling.
In telecommunications, cable Internet access, abbreviated to cable Internet, is a form of broadband Internet access in which the infrastructure is the same as a cable television. Like the digital subscriber line and fiber services facilities, cable Internet access provides network edge connectivity (last mile access) from the Internet service provider to an end user. It integrates into the cable television infrastructure in a manner analogous to DSL that uses the existing telephone network. Cable TV networks and telecommunications networks are the two predominant forms of residential Internet access. Recently, both have seen greater competition for fiber deployments, wireless and mobile networks.
Broadband cable Internet access requires a cable modem at the customer's premises and a cable modem termination system (CMTS) at a cable operator facility, usually a cable TV header. The two are connected through a coaxial cable or a hybrid fiber coaxial (HFC) plant. Although access networks are sometimes referred to as last mile technologies, cable internet systems can operate normally where the distance between the modem and the termination system is up to 160 kilometers. If the HFC network is large, the cable modem termination system can be grouped into hubs for efficient management.
Downstream, the direction to the user, bit rates can be as much as 400 Mbit / s for business connections, and 250 Mbit / s for residential service in some countries, although Gigabit speeds are becoming available. Upstream traffic originating from the user ranges from 384 kbit / s to more than 20 Mbit / s. A downstream channel can handle hundreds of cable modems. As the system grows, the CMTS can be upgraded with more downstream and upstream ports and grouped into hub CMTS for efficient management.
Most data cable service interface specification (DOCSIS) cable modems restrict upload and download rates, with customizable limits. These limits are set in configuration files that are downloaded to the modem using the Trivial File Transfer Protocol, when the modem first establishes a connection to the provider's computer. Some users have attempted to override the bandwidth limit and gain access to the system's full bandwidth (often up to 30 Mbit / s) by uploading its own configuration file to the cable modem - a process called decoupling.