COFDM: an overview

Abstract

The research and development,of OFDWCOFDM for digital television broadcasting has received considerable attention and has made,a great deal of progress in Europe. OFDWCOFDM has already been implemented,in digital audio broadcasting and is being considered for terrestrial digital television and HDTV broadcasting. The advantages of COFDM claimed by the advccates in Europe have also caught,the attention of U.S. broadcasters,and generated enthusiasm although a digital modulation technique called 8-VSB has been selected by the FCC Advisory Committee on Advanced Television Service (ACATS) for the final testing. There is considerable debate in the industry over the use of COFDM vs. VSB or QAM for terrestrial HDTV broadcasting. In this paper, the history of research and development on OFDM