alexa Implementation of a GMSK Communication System on FPGA
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article

Implementation of a GMSK Communication System on FPGA Using Distributed Algorithm

Anupama B R1, M C Chandrashekhar2 and Dr. M Z Kurian3
  1. PG Student [DE], Dept. of E&C, SSIT, Maralur, Tumkur, Karnataka, India
  2. Associate Prof., Dept. of E&C, SSIT, Maralur, Tumkur, Karnataka, India
  3. Dean & HOD, Dept. of E&C, SSIT, Maralur, Tumkur, Karnataka, India
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Abstract

One of the advance modulation method is the Minimum Shift Keying (MSK), but it potentially creates sidebands, that extending out a long way from the carrier, causes interference to adjacent channels and any radio communications links that may be using them. To avoid interference Gaussian Minimum Shift Keying (GMSK) modulation scheme is used in this project, input is filtered using Gaussian filter before modulation, which takes large resources to implement on FPGA. By taking advantage of the Xilinx FPGA look-up table architecture, the Distributed Algorithm (DA) is used to implement the Gaussian filter, algorithm performs multiplication with look-up table method. So that low power, high spectrum efficient communication system is developed. Modulation is carried out using Discrete Frequency Synthesizer (DFS), which has multiplier less structure, utilizes less resource on FPGA.

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