DocumentCode :
2925785
Title :
Channel Coded STBC-OFDM Based Transmit Diversity Systems in Multipath Rayleigh-Fading Channels
Author :
Surendar, M. ; Muthuchidambaranathan, P.
Author_Institution :
Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol. (NIT), Tiruchirappalli, India
fYear :
2013
fDate :
15-17 Dec. 2013
Firstpage :
160
Lastpage :
163
Abstract :
In this paper, a channel coded space-time block coded orthogonal frequency division multiplexing (STBCOFDM) system using Alamouti coding scheme is proposed and their performance is compared in terms of bit error rate (BER) with the existing STBC-OFDM system. The system has been investigated using various modulation techniques such as BPSK, QPSK, 16-PSK and 4-QAM. For channel coding technique, the convolutional encoder is used at the transmitter and the Viterbi decoder is used at the receiver. Simulation results shows the advantage of combining the channel coding with the STBC-OFDM system. It is shown that channel coded STBC-OFDM system has a better BER performance over the conventional system. The proposed system achieves a coding gain (CG) of over 6.0 dB in multipath Rayleigh-fading channel.
Keywords :
OFDM modulation; Rayleigh channels; Viterbi decoding; channel coding; diversity reception; error statistics; quadrature amplitude modulation; quadrature phase shift keying; space-time block codes; 16-PSK; 4-QAM; Alamouti coding scheme; BER; BPSK; QPSK; Viterbi decoder; bit error rate; channel coded STBC-OFDM based transmit diversity systems; channel coded space-time block coded orthogonal frequency division multiplexing system; channel coding technique; convolutional encoder; multipath Rayleigh-fading channels; Bit error rate; Detectors; Fading; Modulation; OFDM; Transmitting antennas; Alamouti coding; Rayleigh-fading channel; orthogonal frequency-division multiplexing; spacetime block coding; transmit diversity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Computing, Networking and Security (ADCONS), 2013 2nd International Conference on
Conference_Location :
Mangalore
Type :
conf
DOI :
10.1109/ADCONS.2013.28
Filename :
6714156
Link To Document :
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