Performance of turbo super-orthogonal space-time frequency trellis coded OFDM system

Turbo codes with iterative decoding are known for its astonishing low bit error rate performance. In this paper, we investigate the performance of turbo super-orthogonal space-time frequency trellis code (TurboSOSTFTC) in orthogonal frequency division multiplexing (OFDM) system over frequency selective fading channels (FSC). The coding scheme is based on parallel concatenation of two SOSTTCs, interleaving and multiple-transmitter/ receiver diversity systems. The frame error rate (FER) of the TurboSOSTFTC scheme is evaluated by computer simulation over different channel scenarios. It is shown that the TurboSOSTFTC-OFDM performs better than conventional SOSTFTC-OFDM and TurboSTTC-OFDM systems over the same channel condition.