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This research described about Doppler shift effect for the communication systems. The mobile station moved with variation velocity around the buildings environment. That mobile station was influenced with Doppler shift at the communication systems. The frequency communication was used 10 GHz. The utilization for that frequency was influenced by the atmospheric attenuation. This research was analysis consist of propagation with LOS and NLOS condition, mobile station velocity variation, height buildings variation, and transmitter power variation. The result from this research was described frequency maximum at Doppler shift, coherence time, and signal to noise ratio. More increase Doppler shift of coherence time caused signal noise ratio to be decrease.
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