@ARTICLE{07llz-cssp,
  author = {Zhuo Lu and Jiandong Li and Linjing Zhao and Liang Chen},
  title = {Design of the Periodic Training Sequence for Joint Channel and Frequency Estimation in {MIMO} Frequency-Selective Channels},
  journal = {Circuits Systems and Signal Processing},
  volume = {26},
  number = {3},
  pages = {},
  year = {Jun. 2007}
}