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SUMMARY:-
To investigate the techniques for occupying less bandwidth and power for a given probability of error, a closer study of transmission techniques are explored during this work in order to determine a suitable modulation technique for a particular wireless application. A mobile communication system is modeled and simulated using GSM standards, including the Gaussian Minimum Shift Keying (GMSK) modulation scheme and a Gaussian ? lter of bandwidth – symbol duration product of 0.3, with a carrier frequency of 900 MHz. The effect of Raleigh fading is studied and simulated using a model based on a spectral analysis of the fading envelope. The Probability of error in the received signal is used in the comparison between various systems, by calculating an appropriate level of noise for particular signal strength. Simulation work has been done using ATLAB software package.
- وصف الــ Tags لهذا الموضوع
- Digital Communication System, GMSK, Wireless Communication, Cellular system, Computer Simulation, Raleigh Fading Channel.
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