Initial FPGA design for generalized Orthogonal Nonsinusoidal Division Multiplexing

Abstract

Generalized Orthogonal Nonsinusoidal Division Multiplexing (GONDM) is a novel multicarrier modulation technique and a promising alternative to the well established OFDM and the wavelet based OWDM. Complex CRAIMOT (CCRAIMOT) transform is used in GONDM, as an alternative of conventional IFFT/FFT. Simplified digital parts of GONDM transmitter and receiver have been implemented into Altera's FPGA. Hardware tests of simplified GONDM with AWGN channel in the baseband have been performed. Bit error rate (BER) performances of OFDM and GONDM for different rotation angles and QPSK mapping are compared. Preliminary results show that GONDM is a promising modulation technique for the building of adaptive data transmission systems.