Title :
Performance analysis of serial concatenated space-time code in OFDM over frequency selective channels
Author :
Patcharamaneepakorn, P. ; Rajatheva, R.M.A.P. ; Ahmed, Kazi
Author_Institution :
Telecommun. Network, Asian Inst. of Technol., Pathumthani, Thailand
Abstract :
In this paper, the performance of serial concatenated space-time code (SCSTC) in an OFDM system has been investigated over frequency-selective fading channel. Time variation of the channel leads to interchannel interference (ICI), which degrades the bit error rate (BER) performance of the system. The degradation depends on the maximum Doppler shift and flat fading channel, the performance with OFDM over frequency selective fading channel partly depends on the channel delay profile. It can be seen that the highest possible diversity gain is the product of the number of transmit antennas and the number of delay diversity order. Finally, simulation results have been evaluated for quasi-static frequency-selective fading channel.
Keywords :
OFDM modulation; adjacent channel interference; concatenated codes; diversity reception; error statistics; fading channels; modulation coding; space-time codes; BER; OFDM system; bit error rate; channel delay profile; frequency selective fading channels; interchannel interference; performance analysis; quasi-static frequency-selective fading channels; serial concatenated space-time code; transmit antennas; Bit error rate; Concatenated codes; Degradation; Delay; Doppler shift; Frequency-selective fading channels; Interchannel interference; OFDM; Performance analysis; Space time codes;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207643