Joint carrier frequency offset and channel estimation in OFDM based non-regenerative wireless relay networks

@article{Thiagarajan2009JointCF,
  title={Joint carrier frequency offset and channel estimation in OFDM based non-regenerative wireless relay networks},
  author={Lokesh Bheema Thiagarajan and Sumei Sun and Tony Q. S. Quek},
  journal={2009 IEEE International Conference on Acoustics, Speech and Signal Processing},
  year={2009},
  pages={2569-2572}
}
Cooperative relaying is an effective approach to combat wireless fading. However, the reliability enhancements depend strongly on the accuracy of the carrier frequency offset (CFO) compensation and channel estimation algorithms. In this paper, we show that CFO compensation at relay is necessary in non-regenerative OFDM based wireless relay networks with relays employing space-time coding. A simple training scheme available for estimating space-time channel is exploited to estimate the CFO at… CONTINUE READING

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