Orthogonal Time Frequency Space Based Communication Performance Analysis with Different Sampling Rate

In this paper, a new method based on the Orthogonal Time Frequency Space (OTFS) with different sampling rate is proposed for high-speed mobile communication scenarios. To realize the high transmission rate of communication data, more transmission symbols are mapped to OTFS waveform time domain. Then, a frequency domain equalizer is used to detect the received signals. Simulation results show that the proposed method is capable of achieving substantial communication data rates and the bit error ratio (BER) performance is close to the inter-symbol interference (ISI)-free system.