Effects of QO-STBC Coded DWT Based MIMO CDMA Wireless Communication System under Different Equalization Technique
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چکیده
This paper incorporates a comprehensive BER simulation study undertaken on the effectiveness of a Quasi Orthogonal Space time block code (QO-STBC) encoded DWT Based MIMO CDMA wireless communication system. The Code Division Multiple Access (CDMA) is a promising technique for high bit rate transmission in wireless communications systems. The QO-STBC encoded DWT Based MIMO CDMA system under present study has incorporated various digital modulation schemes QAM, QPSK, BPSK, DPSK over Additive White Gaussian Noise (AWGN) channel .The channel encoded 4 x 4 antenna (four transmitting antenna and four receiving antenna) configuration and three linear signal detection schemes (Equalizers) such as Minimum Mean Square Error (MMSE), Zero Forcing (ZF) and Single Value Decomposition (SVD). The simulation results clarify that a significant improvement of system performance is achieved in BPSK modulation and MMSE
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تاریخ انتشار 2016