On Building a Cooperative Communication System: Testbed Implementation and First Results

@article{Murphy2009OnBA,
  title={On Building a Cooperative Communication System: Testbed Implementation and First Results},
  author={Patrick Murphy and Ashutosh Sabharwal and Behnaam Aazhang},
  journal={EURASIP J. Wireless Comm. and Networking},
  year={2009},
  volume={2009}
}
We present the results from over-the-air experiments of a complete implementation of an amplify and forward cooperative communications link. Our custom OFDM-based physical layer uses a distributed version of the Alamouti block code, where the relay sends one of the branches of Alamouti-encoded symbols. First we show analytically and experimentally that amplify and forward protocols are unaffected by carrier frequency offsets at the relay. This result allows us to use a conventional Alamouti… CONTINUE READING
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Cooperative communications

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