The modulation scheme used in GSM is

The modulation scheme used in GSM is
| The modulation scheme used in GSM is 

A. frequency shift keying 

B. phase shift keying 

C. Gaussian minimum shift keying 

D. amplitude shift keying 

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Right Answer is: C

SOLUTION

  • Gaussian Minimum Shift Keying, GMSK is a form of modulation based on frequency shift keying that has no phase discontinuities and provides efficient use of spectrum as well as enabling high-efficiency radio power amplifiers.
  • GMSK is probably most widely associated with the 2G GSM mobile communications system where it proved to be an effective form of modulation.
  • It was one of the reasons that GSM cellphones had a long battery life in view of the high efficiency that could be obtained from the RF power amplifiers.

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