Title :
Improvement in interference rejection capability using space-time turbo code and adaptive beamforming for MIMO-OFDM system
Author :
Varade, S. ; Kulat, K.
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Priyadarshini Coll. of Eng., Nagpur, India
Abstract :
This paper aims at performance analysis of MEMO-OFDM system using Space Time Turbo Coding and adaptive beamforming. Computer simulations investigate the BER performance of the Space Time Turbo Coded MEVIO-OFDM system. The system model has been tested for BPSK, QPSK, 16 PSK, 256 PSK modulations with an AWGN channel, Rayleigh fading channel and Rician fading channel using LMS and LLMS beamforming algorithms. The simulation results demonstrate that the proposed method not only has good ability of suppressing interference, but also significantly improves the bit-error rate (BER) performance of MEVIO-OFDM system.
Keywords :
AWGN channels; Rayleigh channels; Rician channels; array signal processing; error statistics; phase shift keying; space-time codes; turbo codes; 16 PSK; 256 PSK modulations; AWGN channel; BER; BPSK; LLMS beamforming algorithms; LMS beamforming algorithms; MIMO-OFDM system; QPSK; Rayleigh fading channel; Rician fading channel; adaptive beamforming; bit-error rate performance; computer simulations; interference rejection capability; interference suppression; space time turbo coded MIMO-OFDM system; space time turbo coding; space-time turbo code; Array signal processing; Bit error rate; Least squares approximation; OFDM; Receiving antennas; Turbo codes; Adaptive beamforming; LLMS (LMS-LMS); LMS (least mean squares); Space-Time Turbo Code (STTC); Spatial diversity;
Conference_Titel :
Signal Processing, Computing and Control (ISPCC), 2012 IEEE International Conference on
Conference_Location :
Waknaghat Solan
Print_ISBN :
978-1-4673-1317-9
DOI :
10.1109/ISPCC.2012.6224357
