Transfer Chart Analysis of Iterative OFDM Receivers with Data Aided Channel Estimation
نویسندگان
چکیده
In this paper, we investigate a coded OFDM system employing an iterative receiver, which is a serial concatenation of an inner and outer component decoder. The inner component decoder includes pilot and data aided channel estimation (CE) and demodulation whereas the outer component decoder consists of the decoder. Between these two components extrinsic loglikelihood ratio values of the code bits are iterated to reduce the bit-error rate (BER) of the information bits. Besides BER plots and extrinsic information transfer (EXIT) charts, we investigate BER transfer (BERT) charts to analyze and predict the performance of the iterative receiver.
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