M. Julia Fernandez-Getino Garcia Ove Edfors José Manuel Páez-Borrallo Peak power reduction for OFDM systems with orthogonal pilot sequences. 47-51 2006 5 IEEE Transactions on Wireless Communications 1 http://dx.doi.org/10.1109/TWC.2006.1576525 db/journals/twc/twc5.html#GarciaEP06