A method and system for data transmission in a orthogonal frequency division multiplexed (OFDM) system is provided. In the invention each of a plurality of data symbols C.sub.k, having a symbol period T, are modulated onto one of a plurality of subcarriers comprising a first data signal. The first data...http://www.google.com/patents/US5790516?utm_source=gb-gplus-sharePatent US5790516 - Pulse shaping for data transmission in an orthogonal frequency division multiplexed system 
