Comparative evaluation on real-time hardware platforms of coded OFDM/QAM and OFDM/OQAM systems

This paper describes the OFDM/QAM and OFDM/OQAM platforms that have been built these last years in Orange Labs in order to compare both modulation schemes. The targeted application was related to the physical layer of mobile terrestrial digital video broadcasting networks; then system parameters are borrowed from the corresponding DVB standards. In addition to a usual evaluation on AWGN channel, SFN and TU channels with strong mobility have been emulated with our real-time hardware platforms. These platforms include realistic channel estimation/equalization and synchronization methods. Our results show that, for this mobile application, OFDM/OQAM can significantly outperform OFDM/QAM.