Sep of cooperative systems using Amplify and Forward or Decode and Forward relaying

In this paper, we analyze the performance of cooperative diversity wireless networks using Amplify-and-Forward (AF) or Decode-and-Forward (DF) relaying over independent, non-identically distributed Nakagami-m fading channels. We derive the Symbol Error Probability (SEP) using the Moment Generating Function (MGF) of the end-to-end Signal-to-Noise-Ratio (SNR) at the destination. In AF relaying, and since it is hard to find a closed form expression for the probability density function (PDF) of the total SNR, we use an upper-bound of the SNR instead. In DF relaying we propose a new approach using a fraction decomposition of the SNR MGF.

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