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This review paper deals with the concept of Turbo coded OFDM (Orthogonal Frequency Division Multiplexing) which improves the system throughput. Orthogonal frequency division multiplexing is a popular modulation method in high speed wireless transmission. It removes the detrimental effect of multipath fading by partitioning the wideband fading channel into flat narrow band channels. For this purpose simple one tap equalizer is used. In this paper, the authors will see how performance of an OFDM system can be improved by adding turbo codes to it.
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