Comparing the BER Performance of WiMAX System by Using Different Concatenated Channel Coding Techniques under AWGN, Rayleigh and Rician Fading Channels
Rekha S.M1, Manoj P.B2
1Rekha S.M, PG Scholor, Electronics and Communication, VTU, AMCEC, Bangalore, India.
2Manoj P.B, Associate Professor, Electronics and Communication, AMCEC, Bangalore, India.
Manuscript received on July 23, 2013. | Revised Manuscript received on August 03, 2013. | Manuscript published on August 30, 2013. | PP: 8-12 | Volume-2, Issue-6, August 2013.  | Retrieval Number: F1927082613/2013©BEIESP

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Abstract: WiMAX (Worldwide Interoperability for Microwave Access) has the capability to transmit the data to a greater extent with very high speed. Application of forward error correction codes (Reed-Solomon (RS), convolution codes (CC) and Low Density Parity Check codes (LDPC)) with WiMAX system ensures the reliability and efficiency of the system. Concatenated RS-LDPC and RS-CC codes will help to improve the performance of the WiMAX system. In this paper the system performance evaluation is performed by transmitting an image under different fading channels (Additive White Gaussian Noise (AWGN), Rayleigh and Rician). Comparison of two concatenated coding techniques is done by calculating the probability of Bit Error Rate (BER) for various values of Signal to Noise Ratio (SNR). The simulation results show that use of RS-LDPC with WiMAX gives better performance than RS-CC.
Keywords: WiMAX, RS, CC, LDPC, AWGN, Rayleigh, Ricean.