Title :
Performance of turbo super-orthogonal space-time frequency trellis coded OFDM system
Author :
Oluwafemi, Ilesanmi B. ; Mneney, Stanley H.
Author_Institution :
Sch. of Electr., Electron. & Comput. Eng., Univ. of KwaZulu-Natal, Durban, South Africa
Abstract :
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.
Keywords :
OFDM modulation; error statistics; fading channels; orthogonal codes; radio receivers; radio transmitters; space-time codes; trellis codes; turbo codes; FER; FSC; OFDM system; SOSTFTC-OFDM systems; TurboSOSTFTC-OFDM; TurboSTTC-OFDM systems; bit error rate performance; frame error rate; frequency selective fading channels; iterative decoding; multiple-transmitter-receiver diversity systems; orthogonal frequency division multiplexing system; turbo super-orthogonal space-time frequency trellis coded OFDM system; Convolutional codes; Delay; Encoding; Fading; Iterative decoding; OFDM; Transmitting antennas; Frequency selective fading channels; iterative decoding; orthogonal frequency division multiplexing; space-time coding;
Conference_Titel :
Telecommunications Forum (TELFOR), 2011 19th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4577-1499-3
DOI :
10.1109/TELFOR.2011.6143607
