A Study on 100Gb/s+ W-band Transceiver Adopting OTFS Signaling for Space Communication

In the future space communication scenarios, high-speed communication with high mobility will face many challenges, including the ultra-reliable communication issue. Orthogonal Time Frequency Space (OTFS) signaling scheme, as an emerging technology, can overcome the multi-path and Doppler effects and offers significant performance compared to orthogonal frequency division multiplexing (OFDM) technology in space communication. In this paper, an introduction of general principle to the OTFS system was presented. A 100Gb/s+ W-band transceiver adopting OTFS signaling was studied and proposed. It combines the OTFS and MIMO technology, fully utilizes broadband frequency spectrum resources, and takes the advantage of the polarization isolation. The system design can overcome severe Doppler shift effect under environmental conditions of space communication with high mobility. In the simulation study, both the system BER level and the system throughput capability are taken into consideration. The experimental results show that the transceiver can effectively operate at BER levels around 10<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-4</sup> when SNR is over 20dB.