Friday, March 29, 2024

Evolution of mobile radio communication

Must read

  • The evolution of mobile radio communication throughout the world is beneficial. This is because it helps to understand the vast influence  of cellular radio and personal communication services over the next future decades. It helps to understand the variation in the evolution of wireless systems, services and technologies due to government regulatory agencies and service competitors. The progressive involvement of technology leads to growth and penetration of mobile market due to high cost and drastic changes in the technology. Wireless communication systems have been accepted by the subscribers at the rates comparable to the television and video cassette recorders.
  • Developments in mobile communications have been carried out slowly and then technical enhancements have been done. The wireless communication features were facilitated to entire public after the introduction of cellular concept by Bell laboratories in 1960’s and 1970’s.The future growth of mobile communication system depends on the allocation of radio spectrum advancement in technologies and regular decisions.
  • In the year1934, Amplitude Modulation (AM) mobile communication systems were utilized by 194 municipal police radio systems and 58 state police stations. The purpose of AM systems is to provide security for public in US. In the middle of 1930’s nearly 5000 radios were installed in mobiles , the users of which  suffered from vehicle ignition noise.
  • In the year 1935,FM was introduced by Edwin Armstrong in mobile communication system, which was then used as basic modulation technique in the world. Table below illustrates the growth and penetration of US mobile users.
YearGrowth in  US mobile users
1940Several thousand
194886,000
19586,95,000
19621.4 Million
198425,000
199012 Million
199125-40 Million
199325 Million
1995100 Million
2001630 Million
21 st century1 Billion
- Advertisement -

More articles

- Advertisement -

Latest article