Study and Survey about Mixed Radix FFT Processor in MIMO OFDM
DOI:
https://doi.org/10.20894/IJMSR.117.002.001.007Abstract
The design of a highly configurable continuous flow mixed-radix (CFMR) Fast Fourier Transform (FFT) processor is presented in Multi-Input Multi-Output (MIMO) Orthogonal frequency division multiplexing (OFDM). Multi-Input Multi-Output (MIMO) system has drawn much attention in 4G wireless technologies. Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter and receiver to increase the diversity gain and enhance the system capacity on time variant and frequency selective channels, resulting in Multi-Input Multi-Output (MIMO) configuration. This paper represent as Mixed radix FFT in MIMO-OFDM system design including channel modeling, space time block code techniques, channel estimation and signal processing algorithms used for performing time and frequency synchronization in MIMO-OFDM system.
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