@inproceedings{
  author = {F. Ludwig and M. Petermann and D. W\"{u}bben and K.-D. Kammeyer and S. Paul},
  year = {2011},
  month = {Aug},
  title = {Relative Downlink Channel Calibration in OFDM Systems with Cordic QR Decomposition},
  URL = {http://ofdm.tu-harburg.de/},
  address={Hamburg, Germany},
  booktitle={16th International OFDM-Workshop (InOWo 11)}
}