Application Research Of OFDM On Mobile Communication

The thesis researches the application of OFDM modulating technology on mobile communication based on improving transfer effect in limited band broad and overcoming Multi_path fading. Simulates receive and transfer of GPRS based on OFDM by matlab, and programs on system of OFDM receive-transfer and synchronization algorithms and modulation algorithms using matlab. The last, designs FFT module using VHDL.The primary one is to research synchronization measure of OFDM receiving system , namely, since sensitive to frequency offsetting , Basing receiver Synchronization order of GPRS receiving system , analyses and simulates grouping synchronization ,timing synchronization ,sampling synchronization ,frequency synchronization ,phase tracking and channel estimation . Moreover, simulates and compares ideal synchronization , partial synchronization and entirety synchronization .The second, implements OFDM modulation by FPGA.The third, designs physical layer of GPRS of mobile communication in 2GHZ frequency band, and simulates its modulation and demodulation using matlab .