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Generations of Mobile Communication
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Generations of Mobile Communication

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  • 1. BY- Bhomik Pandey Pranoy Prasad Kanika Singhal
  • 2.  
  • 3.
    • 1G (or 1-G) is short for first-generation wireless telephone technology, cellphones.
    • Uses digital signaling to connect the radio towers to the rest of the telephone system .
    • Uses analog signaling to communicate between the speakers.
    • The voice is modulated to higher frequency, typically 150MHz and up.
  • 4.
    • 2G (or 2-G) is short for second-generation wireless
    • telephone technology.
    • Commercially launched on the GSM standard.
    • Three primary benefits of 2G networks :
    • 1) Phone conversations were digitally encrypted.
    • 2) More efficient on the spectrum allowing for far greater
    • mobile phone penetration levels.
    • 3) Introduced data services for mobile, starting with SMS
    • text messages.
  • 5.
    • The lower powered radio signals require less battery power.
    • Digital error checking increased sound quality by increasing
    • dynamic range and lowering the noise floor.
    • The lower power emissions helped address health concerns.
    • Introduction of digital data services, such as SMS and email.
    • Greatly reduced fraud.
    • Enhanced privacy. Digital cellular calls are much harder to
    • eavesdrop on by use of radio scanners.
  • 6.
    • In less populous areas, the weaker digital signal may not
    • be sufficient to reach a cell tower.
    • Digital signal has a jagged steppy one and has occasional dropouts.
    • While digital calls tend to be free of static and background noise, the lossy compression used by the codecs takes a toll; the range of sound that they convey is reduced.
  • 7.  
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  • 12.
    • A fully IP-based integrated system.
    • Will be capable of providing between 100 Mbit/s and 1 Gbit/s speeds both indoors and outdoors.
    • Premium quality and high security.
  • 13.