Bit Error Rate Performance of BPSK Modulation and OFDM-BPSK with Rayleigh Multipath Channel
M. Divya
M. Divya,  Assistant Professor, Department of Electronics and Communication Engineering, KL University, Guntur, A.
Manuscript received on March 02, 2013. | Revised Manuscript received on April 13, 2013. | Manuscript published on April 30, 2013. | PP: 623-626 | Volume-2, Issue-4, April 2013. | Retrieval Number: D1532042413/2013©BEIESP

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Abstract: In this paper Bit Error Rate performance of BPSK modulation and OFDM -BPSK System over Rayleigh fading channel is analyzed. The performance of BER of BPSK over AWGN and Rayleigh channel is compared. OFDM is a orthogonal frequency division multiplexing to reduce inter-symbol interference problem. Simulation of BPSK signals is carried with both AWGN and Rayleigh channel. Finally simulations of OFDM signals are carried with Rayleigh faded signals to understand the effect of channel fading and to obtain optimum value of Bit Error Rate (BER) and Signal to noise ratio (SNR). The simulation results show that the simulated bit error rate is in good agreement with the theoretical bit error rate for BPSK modulation.
Keywords: BPSK, BER, OFDM, Rayleigh fading channel etc.