DVB-T stands for Digital Video Broadcasting - Terrestrial and it is the DVB European consortium standard for the broadcast transmission of digital terrestrial television. This system transmits a compressed digital audio/video stream, using OFDM modulation with concatenated channel coding (i.e. COFDM). The adopted source coding methods are MPEG-2 and, more recently, H.264. In January 2006, a study group named TM-T2_SM (Study Mission on Second Generation DVB-T) has been established by DVB Group for investigation of advanced modulation schemes that could be adopted by a second generation digital terrestrial television standard