@inproceedings{VAAM06-SPAWC,
    title = "Optimal superimposed pilot training for {OFDM} channel estimation",
    author = "Angiras R. Varma and Chandar Athaudage and Lachlan L. H. Andrew and Jonathan H. Manton",
    month = Jul,
    year = "2006",
    booktitle = "IEEE Signal Processing Advances in Wireless Communications (SPAWC)",
    url = "http://netlab.caltech.edu/lachlan/abstract/SPAWC06super.pdf"
}