Performance Analysis of BER for GMSK Signal for GSM Frequency Transmitted Through AWGN Channel

  • N. RakeshEmail author
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 26)


Gaussian Minimum Shift keying is used in GSM (Global system Mobile communication). It is also used in Cellular Digital Packet Data (CDPD), Digital European Cordless Telephone (DECT). GMSK supports better spectral efficiency the use of this is to have less sidebands as par with other technologies. After filtering the signal it is given to the MSK modulator. The major purpose in GMSK is it doesn’t consider amplitude variations hence there will not be much noise getting effected with the signal also this consumes low battery usage in accordance with other technologies so this is a pivotal parameter we consider in cell phones. GMSK modulator and demodulator is present in either ends i.e. at Cell Phone side and at BTS station. Inter-symbol Interference will diminish the usage of GMSK there by introducing Bit errors so these need to be considered and they are removed by using suitable decoding techniques generally Viterbi algorithm was used for efficient output or demodulation of the signal.


OQPSK-Offset Quadrature Phase Shift Keying QPSK-Quadrature PhaseShift keying MSK-Minimum Shift Keying GMSK-Gaussian Minimum Shift Keying AWGN-Additive White Gaussian Noise BER-Bit Error Rate SNR-Signal to Noise Ratio 


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringAmrita School of Engineering, Amrita Vishwa VidyapeethamBengaluruIndia

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