Error Analysis of Fixed-Gain AF Relaying with MRC Over Nakagami-m Fading Channels

Error Analysis of Fixed-Gain AF Relaying with MRC Over Nakagami-m Fading Channels

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This article investigates the error performance of wireless communication systems that employ binary modulations and Amplify-and-Forward (AF) relaying over flat Nakagami-m faded links with maximum ratio combining (MRC) at destination.Specifically, mike and ike conversation hearts we derive a simple yet accurate closed-form approximation for the average bit error probability (ABEP) and closed-form expressions for its tight upper and lower bounds.The effect of power imbalance between the relayed links is also studied.Numerical investigations show good agreement susanne kaufmann vitamin c complex between proposed theoretical results and simulations whereas our performance bounds are shown to be tighter than previously proposed bounds for the case of unbalanced relayed links.