Performance Evaluation of Coded Cooperative Relay Based OFDM Wireless Communication System

Mohamed, Ahmed S; Abd-Elnaby, Mohammed; El-Dolil, Sami A.

doi:10.21608/mjeer.2016.63643

Performance Evaluation of Coded Cooperative Relay Based OFDM Wireless Communication System

Document Type : Original Article

Authors

Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt.

10.21608/mjeer.2016.63643

Abstract

^{This paper investigates the performance of a coded cooperative}^{relay based Orthogonal Frequency Division Multiplexing}^{(OFDM) wireless communication system using native rate 1/2}^{convolutional code and rate 1/3 turbo code. These}^{investigations are focused on evaluating the performance of the}^{proposed coded cooperative wireless communication system}^{over both Additive white Gaussian Noise (AWGN) channel and}^{different Stanford University Interim (SUI) channel models. The}^{performance of the proposed coded cooperative relay based}^{system is evaluated using MATLAB computer simulations and}^{compared with direct transmission and other cooperative}^{protocols i.e., Amplify-and-Forward (AAF) and Decode-andForward (DAF). The performance indicators used for}^{comparison are Bit-Error Rate (BER) and spectral efficiency.}^{The results show that the proposed coded cooperative system}^{achieves lower Signal-to-Noise Ratio (SNR) values for the}^{desired BER and achieves high spectral efficiency as compared}^{to direct transmission, AAF and DAF based cooperative}^{protocols. Finally, the results of computer simulations are}^{included to demonstrate the efficiency of the proposed scheme.}

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