PERFORMANCE ANALYSIS OF MIMO-OFDM SYSTEM USING QOSTBC CODE STRUCTURE FOR M-QAM
MIMO-OFDM system has been currently recognized as one of the most competitive technology for 4G mobile wireless systems. MIMO-OFDM system can compensate for the lack of MIMO systems and give play to the advantages of the OFDM system. In this project, a general Quasi-orthogonal space-time block code (QOSTBC) structure is proposed for multiple-input multiple-output–orthogonal frequency-division multiplexing (MIMO-OFDM) systems for 8X8 antenna configuration. The signal detection technology used for the MIMO-OFDM system is Zero-Forcing Equalization (linear detection technique). In the Matlab simulation analysis of the high level of modulations ( i.e M-QAM for different values of M) on the MIMO-OFDM system is presented. Here Rayleigh channel with 16 QAM have been used for analysis purpose and their effect on BER for high data rates have been presented. The proposed MIMO-OFDM system with QOSTBC using 1x1,2x2,4x4,6x6 and 8x8 antenna configuration has better performance in terms of BER vs SNR.
Reference Paper: Performance Analysis of MIMO-OFDM System Using QOSTBC Code Structure for M-QAM
Author’s Name: Lavish Kansal, Ankush Kansal, and Kulbir Singh
Source: Canadian Journal on Signal Processing
Year:2011
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