Erchin Serpedin Antoine Chevreuil Georgios B. Giannakis Philippe Loubaton Blind channel and carrier frequency offset estimation using periodic modulation precoders. 2389-2405 2000 48 IEEE Transactions on Signal Processing 8 http://dx.doi.org/10.1109/78.852019 db/journals/tsp/tsp48.html#SerpedinCGL00