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This paper analyzes the performance of single relay selection cooperative wireless networks using amplify-and-forward relaying. The network channels are modeled as independent, non-identical, Rician distributed coefficients. The authors derive approximate formulas for the Symbol Error Rate (SER) of the opportunistic relaying cooperative network. They first derive the PDF of the approximate value of the total SNR. Then, assuming M-PSK or M-QAM modulations, the PDF is used to determine the SER. For sufficiently large SNR, this paper derives the close-form average SER. The simplicity of the asymptotic results provides valuable insights into the performance of cooperative networks and suggests means of optimizing them.
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