ABSTRACT
Orthogonal frequency division multiplexing (OFDM) is the primary modulation technique for digital broadband communication and broadcasting systems, including the digital video broadcasting (DVB)1
and digital audio broadcasting (DAB).2 The fundamental principle of OFDM technology is the concept of multichannel modulation that divides a broadband wireless channel into a number of parallel subchannels, or subcarriers, so that multiple symbols can be sent in parallel. Earlier overviews of the OFDM system and its applications can be found in Bingham3 and Zou and Wu.4
