FPGA Implementation of Orthogonal Time Sequency Multiplexing Modulation

Orthogonal time sequency multiplexing (OTSM) modulation is a new single-carrier modulation scheme proposed in recent years, which has higher performance gain than traditional orthogonal frequency division multiplexing (OFDM) and similar performance to orthogonal time frequency space (OTFS). However, the design complexity of the transmitter and receiver is greatly reduced by using the Walsh-Hadamard transform. In this paper, the OTSM modulation scheme is introduced and analyzed from the basic principle, and the modulator of OTSM system is designed and implemented by using Verilog hardware description language in QuartusII environment using field programmable gate array technology, and the effectiveness of the design is verified by Modelsim software simulation.