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4G technology

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Rajanish Kumawat
Rajanish Kumawat

The document discusses the future of 4G network technology. It explains that 4G will provide ultra high broadband speeds measured in gigabytes per second, allowing users to download movies within 5 minutes or stream high-definition content to mobile devices. 4G will use technologies like OFDM and MIMO to achieve higher data transfer rates and signal quality compared to 3G. Several countries have already launched 4G networks commercially, with technologies like LTE and WiMax supporting 4G infrastructure and providing speeds up to 100 Mbps for downloads. India has begun the process of introducing 4G but may face delays similar to its 3G rollout unless it wants to catch up globally with 4G.

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THE FUTURE OF NETWORK PRESENTED BY: RAJNISH KUMAWAT E.C.E
INTRODUCTION WHAT IS 4G? EVOLUTION OF 4G EVOLUTION OF PROCESSORS AND DSP TECHNOLOGY FOR 4G PRINCIPLE TECHNOLOGIES WHICH COUNTRIES HAVE 4G? INFRASTRUCTURE FOR 4G 4G EVOLUTION INTO CONVERGENCE WiMax WIRELINE BANDWIDTH DEMAND PROJECTION FOR NEXT 25 YEARS 4G IN INDIA?
4G, the successor of 3G, will soon become the standard for cellular wireless The technology is currently available in some countries but it is still being perfected The aim is to achieve ultra broadband speed to be counted in gigabytes per second
ITU designed 4G in 2002 with the official name 3G Long-Term Evolutions or 3.9G 4G will allow users to download a full- length feature film within five minutes 4G will also be able to stream high- definition television and radio to hand-held devices The basic difference between 3G and 4G is in data transfer and signal quality
The highest download and upload speed in 3G are 14 Mbps and 5.8 Mbps respectively. In 4G the download speed is up to 100 Mbps for moving users and 1 Gbps for stationary users. 4G is adoption of packet switching instead of circuit switching in voice and video calls. With packet switching, resources are only used when there is information to be sent across the globe. 4G uses spiral multiplexing.
4G technology
4G TECHNOLOGY
OFDM: To exploit the frequency selective channel property. MIMO: To attain ultra high spectral efficiency. Principal TechnologiesPrincipal Technologies
Single channel utilizes multiple sub-carriers on adjacent frequencies. Sub-carriers in an OFDM system are precisely orthogonal to one another, thus they are able to overlap without interfering. It allows transfer of more data than other forms of multiplexing (time, frequency, code, etc). OFDMOFDM
OFDM
MIMO MIMOMIMO
Except for the Scandinavian countries, a few countries have started the 4G commercially. In the US, Sprint Nextel initiated the service last year. Countries expected to launch 4G by this year are Germany, Spain, China, Japan and England.
There are three primary technologies that support 4G WiMax, LTE, and UMB The main doubt is whether to implement WiMax or LTE The advantages of LTE are: (i) Faster speed with 100 Mbps for download and 50 Mbps for upload. (ii) It makes CDMA and GSM database moot. (iii) It offers both FDD and TDD duplexing
4G technology
WiMax technology might not achieve the required rate in a high-density area. However, WiMax technology becomes useful when it is bundled with IPTV. The wireless bandwidth will be roughly 3Mbps/1.5Mbps; but this is nowhere near the +100Mbps/50Mbps that LTE promises.
4G technology
India has already begun the process of introducing 4G. India is among the latecomers in 3G. It is felt that by the time the implement 3G fully, 4G technologies such as LTE will be available commercially. It has taken three years for the government to decide on 3G-spectrum auction policy. 4G could face the same delay unless India wants to catch up with the rest of the world.
4G technology

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4G technology

  • 1. THE FUTURE OF NETWORK PRESENTED BY: RAJNISH KUMAWAT E.C.E
  • 2. INTRODUCTION WHAT IS 4G? EVOLUTION OF 4G EVOLUTION OF PROCESSORS AND DSP TECHNOLOGY FOR 4G PRINCIPLE TECHNOLOGIES WHICH COUNTRIES HAVE 4G? INFRASTRUCTURE FOR 4G 4G EVOLUTION INTO CONVERGENCE WiMax WIRELINE BANDWIDTH DEMAND PROJECTION FOR NEXT 25 YEARS 4G IN INDIA?
  • 3. 4G, the successor of 3G, will soon become the standard for cellular wireless The technology is currently available in some countries but it is still being perfected The aim is to achieve ultra broadband speed to be counted in gigabytes per second
  • 4. ITU designed 4G in 2002 with the official name 3G Long-Term Evolutions or 3.9G 4G will allow users to download a full- length feature film within five minutes 4G will also be able to stream high- definition television and radio to hand-held devices The basic difference between 3G and 4G is in data transfer and signal quality
  • 5. The highest download and upload speed in 3G are 14 Mbps and 5.8 Mbps respectively. In 4G the download speed is up to 100 Mbps for moving users and 1 Gbps for stationary users. 4G is adoption of packet switching instead of circuit switching in voice and video calls. With packet switching, resources are only used when there is information to be sent across the globe. 4G uses spiral multiplexing.
  • 8. OFDM: To exploit the frequency selective channel property. MIMO: To attain ultra high spectral efficiency. Principal TechnologiesPrincipal Technologies
  • 9. Single channel utilizes multiple sub-carriers on adjacent frequencies. Sub-carriers in an OFDM system are precisely orthogonal to one another, thus they are able to overlap without interfering. It allows transfer of more data than other forms of multiplexing (time, frequency, code, etc). OFDMOFDM
  • 10. OFDM
  • 12. Except for the Scandinavian countries, a few countries have started the 4G commercially. In the US, Sprint Nextel initiated the service last year. Countries expected to launch 4G by this year are Germany, Spain, China, Japan and England.
  • 13. There are three primary technologies that support 4G WiMax, LTE, and UMB The main doubt is whether to implement WiMax or LTE The advantages of LTE are: (i) Faster speed with 100 Mbps for download and 50 Mbps for upload. (ii) It makes CDMA and GSM database moot. (iii) It offers both FDD and TDD duplexing
  • 15. WiMax technology might not achieve the required rate in a high-density area. However, WiMax technology becomes useful when it is bundled with IPTV. The wireless bandwidth will be roughly 3Mbps/1.5Mbps; but this is nowhere near the +100Mbps/50Mbps that LTE promises.
  • 17. India has already begun the process of introducing 4G. India is among the latecomers in 3G. It is felt that by the time the implement 3G fully, 4G technologies such as LTE will be available commercially. It has taken three years for the government to decide on 3G-spectrum auction policy. 4G could face the same delay unless India wants to catch up with the rest of the world.