Bit interleaved coded modulation-orthogonal frequency division multiple access system with a concatenated code

Orthogonal frequency division multiple access (OFDMA) is a multi-carrier transmission technique that has been recently recognized as an excellent method for high speed bi-directional wireless data communication and it is one of the strong candidates as multiple access technique for the next generation of downlink receivers. In this paper, the proposed concatenated BICM with Orthogonal Frequency Division Multiple Access System is investigated over AWGN and slow fading channel with different modulation schemes using the bit-error rates (BER) versus the bit energy-to noise density ratio (E_b/N_o) curves.