Chapter 4.4 4.4 sin( f / f ) ( f / f ) 2 OFDM transmission Erik Dahlman, Stefan Parkvall, Johan Skold and Per Beming In this chapter, a more detailed overview of OFDM or Orthogonal Frequency Division Multiplexing will be given. OFDM has been adopted as the downlink transmission scheme for the 3GPP Long-Term Evolu- tion (LTE) and is also used for several other radio Subcarrier spectrum Pulse shape