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4 g technology


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About 4G technology in Nutshell

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4 g technology

  1. 1.  4G-4th Generation of mobile communication.  A descendant to 2G and 3G technology aiming to provide the very high data transfer rates.  Best described in one word “MAGIC”.  MAGIC Mobile multimedia Anytime Anywhere Global mobility support, integrated wireless and personalized services.
  2. 2.  3G utilized WiMax &WiFi as separate wireless technologies  4G is expected to coalesce these two technologies.  4G will be able to connect various high speed networks together.  In 4G HD data will be made available without much of a problem over the internet.
  3. 3.  The 4G system was originally envisioned by the Defense Advanced Research Projects Agency (DARPA).  The DARPA selected the distributed architecture and end-to-end Internet protocol (IP), and in peer- to-peer networking.
  4. 4.  Two 4G candidate systems are commercially deployed: Mobile WiMax standard Long Term Evolution (LTE) standard  Bharti Airtel launched India's first 4G service, using TD-LTE technology, in Kolkata on April 10, 2012.
  5. 5.  4G (LTE) is quicker than 3G  4G holds: less buffering better audio quality improved gaming experience streaming services with reduced lag.  Our 4G Plus network uses the 1800 & 2300 MHz frequency bands  Our 3G Plus network uses the 900 & 2100 MHz frequency bands
  6. 6.  There are some components which makes the successful 4G systems they are: a) OFDMA b) MIMO c) IPv6.0 d) Spectral efficiency of 4G e) SDR(Software Defined Radio) f) Smart antennas
  7. 7. OFDMA: Orthogonal Frequency Division Multiple Access.  It captures entire energy  Only few signals are affected or lost in OFDM while compared to CDMA in 3G. MIMO(Multi Input Multi Output):  improve the communication performance between sender and receiver  range, quality of received signal and spectrum efficiency are high.
  8. 8. IPv6.0:  Allows more address than IPv4.0  IPv6 each device have own IP address. SDR(Software Defined Radio):  A SDR will allow increasing network capacity at specific time.
  9. 9. Smart antenna  Switched Antenna: Based on the requirement of the system ,signal is received at any given time.  Adaptive Antenna: Steer the signal at any direction of interest ,nullify the interfering signal.
  10. 10. UE eNodeB SGW(Service gateway) MME(Mobility Management Entity) PDN(Packet Data network)
  11. 11.  Higher bandwidth  Better response time. 10 times better then 3G  Works at 2.6GHz frequency  Less time to build 4G  It use the same tower and fiber cables as 3Gs - they only have to upgrade the towers with 4G components.
  12. 12.  New technology which makes it more expansive than 3G  It is impossible to make our current equipment to be compatible with 4G.  It is available in certain cities within US.
  13. 13.  4G will bring a great revolution in mobile communication.  The future of 4G is nothing but 5G.
  14. 14.  4G technologies was still at research stages in many of the countries.  Companies like NTT Do Como Mobile and Nortel Networks, and Nokia Siemens Networks successfully demonstrated the working of4G.  This technology will be deployed in the world market soon.