13-05-2014, 04:57 PM
OVERVIEW OF BROADBAND TECHNOLOGY
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INTRODUCTION
With the evolution of computer networking and packet switching concept a new era
of integrated communication has emerged in the telecom world. Rapid growth of data
communication market and popularity of Internet, reflect the needs of enhanced
infrastructure to optimize the demand of traffic. Integration of telecom and computer
networking technology trend has further amplified the importance of
telecommunications in the field of information communication. It becomes a tool for
the conveyance of information, and thus can be critical to the development process.
Telecommunications has become one of the most important infrastructures that are
very essential to the socio-economic well being of any nation. As the Internet market
continues to explode, demand for greater bandwidth and faster connection speeds
have led to several technological approaches developed to provide broadband access
to all consumers. The demand for high-speed bandwidth is growing at a fast pace,
driven mostly by growth in data volumes as the Internet and related networks become
more central to business operations. The rapid growth of distributed business
applications, e-commerce, and bandwidth-intensive applications (such as multimedia,
videoconferencing, and video on demand) generate the demand for bandwidth and
access network.
DEFINITION OF BROADBAND
Broadband is the nonspecific term for high-speed digital Internet access. To state the
obvious, ‘broadband’ indicates a means of connectivity at a high or ‘broad’
bandwidth. There are the various ways to define the broadband: -
• Term for evolving digital technologies that provide customers a high-speed
data network connection
• Provides signal switched facility offering integrated access to voice, data,
video, and interactive delivery services
• The Federal Communications Commission (FCC) defines broadband as an
advanced telecommunications capability
•Delivers services & facilities with an upstream and downstream speed of 200
Kbps or more. Range varies from 128 Kbps to 100 Mbps.
In fact there is no specific International Definition for Broadband
In India, Department of Telecommunications has issued a Broadband policy in 2004.
Keeping in view the present status, Broadband connectivity is defined at present as: -
“An ‘always-on’ data connection that is able to support interactive services including
Internet access and has the capability of the minimum download speed of 256 kilo bits
per second (kbps) to an individual subscriber from the Point Of Presence (POP) of the
service provider intending to provide Broadband service where multiple such
individual Broadband connections are aggregated and the subscriber is able to access
these interactive services including the Internet through this POP. The interactive
services will exclude any services for which a separate license is specifically required,
for example, real-time voice transmission, except to the extent that it is presently
permitted under ISP license with Internet Telephony.
SUMMARY
There are tremendous changes in the telecommunication technologies. With the
evolution of Internet telecom world has merged rapidly in computer network.
Broadband Internet connections allow users to download web pages and data many
times faster than conventional 'narrowband' Internet access. Broadband services are
'always-on' - the computer is connected to the Internet continuously. Users pay a flat
rate independent of how long they spend on the Internet or the amount of data
downloaded.