Monday, June 23, 2008

BROADBAND AND INDIA'S TWO BIGGEST COMPETITORS

BROADBAND

Broadband in telecommunications is a term that refers to a signaling method that includes or handles a relatively wide range of frequencies, which may be divided into channels or frequency bins. Broadband is always a relative term, understood according to its context. The wider the bandwidth, greater is the information carrying capacity. In radio, for example, a very narrow-band signal will carry Morse code; a broader band will carry speech; a still broader band is required to carry music without losing the high audio frequencies required for realistic sound reproduction. A television antenna described as "normal" may be capable of receiving a certain range of channels; one described as "broadband" will receive more channels. In data communications a modem will transmit a bandwidth of 64 kilobits per seconds (kbit/s) over a telephone line; over the same telephone line a bandwidth of several megabits per second can be handled by ADSL, which is described as broadband (relative to a modem over a telephone line, although much less than can be achieved over a fibre optic circuit.

Broadband in data communications may have the same meaning as above, so that data transmission over a fiber optic cable would be referred to as broadband as compared to a telephone modem operating at 600 bits per second.[citation needed]

However, broadband in data communications is frequently used in a more technical sense to refer to data transmission where multiple pieces of data are sent simultaneously to increase the effective rate of transmission, regardless of actual data rate. In network engineering this term is used for methods where two or more signals share a medium.

The various forms of Digital Subscriber Line (DSL) services are broadband in the sense that digital information is sent over a high-bandwidth channel above the baseband voice channel on a single pair of wires.[citation needed]

A baseband transmission sends one type of signal using a medium's full bandwidth, as in 100BASE-T Ethernet. Ethernet, however, is the common interface to broadband modems such as DSL data links, and has a high data rate itself, so is sometimes referred to as broadband. Ethernet provisioned over cable modem is a common alternative to DSL.

ALSO REFER THIS USEFUL LINK AT : BROADBAND
-------------------------------------------------------------------------------------------------
BSNL BROADBAND

BSNL Broadband is a broadband internet service from state owned BSNL in India since 14th January, 2005. Until September 30, 2007 it was known as 'Data One' [1]

DataOne has increased the bandwidth from 256 kbit/s to 8 Mbit/s from January 1, 2007 onwards.

Official BSNL Broadband site :http://www.bsnl.co.in/service/dataone.htm

ALSO REFER THIS USEFUL LINK AT : BSNL BROADBAND
-------------------------------------------------------------------------------------------------
RELIANCE BROADBAND

Reliance Infocomm is an Indian telecommunications company. It is the flagship company of the Reliance-Anil Dhirubhai Ambani Group, comprising of power (Reliance Energy), financial services (Reliance Capital) and telecom initiatives of the Reliance ADA Group. Reliance Infocomm is currently managed by Anil Dhirubhai Ambani.It uses CDMA2000 1x technology.

RelCom is also into Wireline Business through out India and has the largest OFC backbone architecture [roughly 110,000 KMs] in the country. The company also has license in the GSM telecom services space for most of the Telecom Circles ( zones in layman's words). It currently operates in 8 circles and plans to launch in the others soon.

ALSO REFER THIS USEFUL LINK AT : RELIANCE BROADBAND


No comments: