Exact & Closed-Form BER Expressions Based on Error-Events at Relay Nodes for DF Relay Systems over Rayleigh Fading Channels

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概要

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• In this letter, we derive another exact bit error rate (BER) for decode-and-forward (DF) relay systems over Rayleigh fading channels. At first, our focus is on fixed-DF (FDF) relay schemes in which the probability density function (PDF) is derived based on error-events at relay nodes. Some insight into how erroneous detection and transmission at relay nodes affect both the combined signal-to-noise ratio (SNR) and the averaged BER is obtained, and cooperative diversity is observed from the closed-form BER expression. In addition, the developed analytical method is extended to adaptive-DF (ADF) schemes and the exact BER expressions are derived. Simulation results are finally presented to validate the analysis.

• 2011-08-01

著者

• Jang Jeanyeung

  Communication & Signal Processing Lab. (cspl) Dept. Of The Control And Instrumentation Engineering Chungju National Univ.

• KO Kyunbyoung

  Communication & Signal Processing Lab. (CSPL), Dept. of the Control and Instrumentation Engineering, Chungju National Univ.

• Ko Kyunbyoung

  Communication & Signal Processing Lab. (cspl) Dept. Of The Control And Instrumentation Engineering Chungju National Univ.

関連論文

• Exact & Closed-Form BER Expressions Based on Error-Events at Relay Nodes for DF Relay Systems over Rayleigh Fading Channels

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