Different Approaches for OFDM Transmitter and Receiver Design in Hardware FPGA Design and Implementation with Performance Comparison
نویسندگان
چکیده
In this paper we investigate performances (bandwidth and speed) that could be obtained using basic logic structures for implementing improved Cooley-Tukey algorithm for IFFT/FFT in transmitter/receiver, as well the approach for implementing OFDM processing unit based on optimized ROM implementation. We implemented these techniques for OFDM in Virtex5 and Viterx7 FPGA boards, and we analyzed the used percentage of FPGA boards for two different approaches, improved Cooley-Tukey algorithm and minimized ROM implementation, versus maximum achievable performances under different modulation parameters Keywords—FFT/IFFT, OFDM, Cooley-Tukey, ROM, FPGA, multi-gigabit speed.
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