Analysis of OFDM System Using Different Channel with QAM Modulation Scheme
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چکیده
The Modeling and Simulation can play an most-important role during all phases of the design and engineering of communication systems. Orthogonal Frequency Division Multiplexing (OFDM) was originally developed from the multicarrier modulation techniques used in high frequency military radios. It is modulated data streams are divided into number of parallel sub-streams which occupies a very less bandwidth. However, full justice was done in proper utilization of bandwidth in OFDM where subcarriers overlap orthogonally. In this paper, simulation system is implemented using different channel like Additive White Gaussian Noise channel (AWGN) and fading channel with QAM modulation scheme and the performance analysis of Bit Error rate (BER) verses Signal to Noise ratio (SNR). The performance of MIMO-OFDM is tested for modulation techniques namely QAM using MATLAB-2013.
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تاریخ انتشار 2014