Articles | Volume 3
Adv. Radio Sci., 3, 27–37, 2005
https://doi.org/10.5194/ars-3-27-2005
Adv. Radio Sci., 3, 27–37, 2005
https://doi.org/10.5194/ars-3-27-2005

  12 May 2005

12 May 2005

OFDM: From the Idea to Implementation

S. A. Fechtel S. A. Fechtel
  • Infineon Technologies AG, Rosenheimer Str. 116, 81699 M¨unchen, Germany

Abstract. OFDM (orthogonal frequency-division multiplexing) is one of the key digital communication technologies of the current decade. The first part of this paper presents the fundamentals of OFDM and its benefits in the presence of multipath propagation in a tutorial-like fashion. The second part details on some of the most important aspects of OFDM transceiver implementation: concept of receiver channel filtering and A/D conversion, radio impairment compensation (I/Q mismatch), and OFDM demodulator (FFT) design.