The Evolution of Telecommunication

1G

Ø It works on analog signals.

Ø It supports data  band width in kbps.

Ø It is based on basic mobility.

Ø It is time consuming.

Ø During 1G wirless phones are used for voice calls only.

Ø It has bo security.

Ø Band width per frequency channel of 1G is up to 30khz.

2G

Ø It is the second generation technology that exists in 1990.

Ø It is succeror to 1G.

Ø It is based on digital signals.

Ø It is mainly used for mobile communication .

Ø No quality of service.

Ø Handset  are provided with messaging facilty (sms, mms, and picture meesage.)

Ø It cannot take multiple parties simultaneously

Ø Band width per frequency channel of 2G is up to 200 khz.

Ø Core network is PTN.

Ø Maximum speed is up to 64kbps.

3G

Ø It is also called as tri band 3G .

Ø It is based on high capcity broad band data.

Ø The maximum data transfer speed is up to 3.1MBPS.

Ø It provides digital naxigation.

Ø It provides video access.

Ø 3G Is successor to 2G.

Ø Seamless roaming.

Ø High data rates.

Ø Band width per frequency channel is up to 20 MHZ.

4G

Ø 4G is present since 2000.

Ø 4G is fourth generation of mobile communication technology.

Ø 4G provides dynamic information access wearable devices.

Ø It supports data band width in MBPS.

Ø Speed for 4G are further increased to keep up data access demand used by various services.

Ø 4G provides high definition streaming and some additional features such as multimedia newspaper and ultra broad band  access.

Ø Band width per frequency channel is up to 100 MHZ.

Ø In 4G concatenated codes are used for error detection.

Ø CDMA multiple access use in 4G.

5G

Ø  It will come till 2020.

Ø It is successor to 4G.

Ø It is based on internet protocol IPV6.

Ø It is for mobile communication and also for wireless internet .

Ø Very high quality of service.

Ø Hand sets are provided  with ultra high HD video calling.

Ø Band width per frequency channel of 5G is up to  28GHZ.

Ø Core network  is internet .

ØMaximum speed is up to 1GBPS.