What is gmsk modulation

1. How does GMSK modulation work?
2. What is meant by GMSK?
3. Why is GMSK used?
4. Where is GMSK modulation used?

How does GMSK modulation work?

The Gaussian Minimum Shift Keying (GMSK) modulation is a modified version of the Minimum Shift Keying (MSK) modulation where the phase is further filtered through a Gaussian filter to smooth the transitions from one point to the next in the constellation.

What is meant by GMSK?

Gaussian minimum shift keying (GMSK) is a form of frequency shift keying (FSK) used in GSM systems. The tone frequencies are separated by exactly half the bit rate. It has high spectral efficiency.

Why is GMSK used?

For HIPERLAN, Gaussian Minimum Shift Keying (GMSK) [Turletti96] are used as the high bit rate modulation scheme to modulate a high rate transmission. GMSK is a Constant Envelope modulation scheme, which means that the amplitude of the transmitted signal is constant. ...

Where is GMSK modulation used?

GMSK – Gaussian minimum shift keying – is the original circuit switched GSM modulation system, allowing the GSM radio channel to be modulated at a data rate of 271kb/s whilst keeping the radio channel within a 200kHz bandwidth. This is the modulation system used for circuit switched and GPRS operations.