Propagation of Mobile Communication with Tree Obstacle used OFDM-QAM at 10 GHz

This research focused about mobile communication systems at the road with trees obstacle. The frequency that used was 10 GHz. The communication transmission that used was Orthogonal Frequency Division Multiplexing. The modulation variation that used was consisted of 16 QAM and 64 QAM. Analysis that used was consisted of modulation variation, transmitter power variation, and coverage area variation. The result showed that SNR was decreased when transmitter power was increased, the value BER 64 QAM lower than BER 16 QAM, and percentage of coverage area that obtained was around 96%.