HIGH PERFORMANCE OFDM SYSTEMS FOR DIGITAL VIDEO BROADCASTING-TERRESTRIAL (DVB-T)

Digital wireless communication has become one of the most exciting research topics in the electrical and electronic engineering field due to the explosive demands for high-speed wireless services, such as cellular video conferencing. Digital video broadcasting-terrestrial-second generation (DVB-T2) has been demonstrated to provide services with very high spectral efficiency and improved performance. Also, OFDM systems have been deployed in mobile networks for their spectral efficiency and optimum bit error rate. Among the OFDM systems, wavelet based systems have been demonstrated to have improved bandwidth and channel performance. In this paper the authors demonstrate that very high spectral efficiency, BER and PAPR can be achieved by employing DWT-DAPSK scheme with the DVTB-T2 system. It is demonstrated in this paper that including companding with this system results in further reduction of PAPR.