In this paper, we demonstrate wideband orthogonal frequency division multiplexing (OFDM) at sub-mmW frequencies with full electronic data and carrier generation. We present the first stringent examination of OFDM-waveform design in a fully electronic experimental setup. Operating at 309 GHz center frequency and modulated channel bandwidths of 2 and 10 GHz, the performance of single-carrier waveforms is compared to OFDM signals with varying modulation formats and subcarrier settings. In addition to the investigation of the gross data rate, which is resulting in 20 Gbit/s for OFDM and 40 Gbit/s for single-carrier, we give one of the first demonstrations of joint communication and sensing with OFDM-signals at sub-mmW frequencies, as the distance between transmitter and receiver isdetermined by examination of the received signal.
