செவ்வாய், 1 பிப்ரவரி, 2022

1G 2G CONTD KATTURAI 
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A satellite placed in an orbit around the earth in order to relay television, radio, data and phone signals. India operates 17 communication satellites from Geo-Synchronous Orbit (as of June 2021).ISRO
The major frequency bands used for satellite communication in India are S-band, C-band, Upper Extended C band, Ku band and Ka band. The INSAT/GSAT satellites carry transponders in these bands.

A transponder is an electronic device on a satellite which facilitates communication from source to destination. It receives the signals through uplink frequency, translates it into downlink frequency, amplifies it and beams back to earth.

1G 2 G DIFFERENCE
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IN 1G internet not provided whereas in 2 g internet is provided
1g data service not provided
in 2g data service provided except vedeos
channelization protocol is fdma in 1 g
it is cdma and tdma in 2g
1g voice signal is analog
in 2g voice signal is digitial

5g artificial intelligence

Artificial Intelligence (AI) will be the dominant technology of the future and will impact every corner of society. In particular, AI / ML (machine learning) will shape how communication networks, a lifeline of our society, will be run. Many companies in the ICT sector are exploring h​ow to make best use of AI/ML. ITU has been at the forefront of this endeavour exploring how to best apply AI/ML in future networks including 5G networks. The time is therefore right to bring together the technical community and stakeholders to brainstorm, innovate and solve relevant problems in 5G using AI/ML. Building on its standards work, ITU is conducting a global ITU AI/ML 5G Challenge on the theme “How to apply ITU's ML architecture in 5G networks".  itu

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