files included: functions.h -- header file for C functions functions.c -- C functions gpu.h -- header file for CUDA functions gpu.cu -- CUDA functions demod_cuda.cu-- basic program to simulate a single block of QPSK-modulated data. The binary data is pulled from a file or generated randomly (revise code to select) nvcc demod_cuda.cu gpu.cu functioncs.c -o dmod_cuda -lcufft ber_cuda.cu -- program to simulate bit error rate testing nvcc ber_cuda.cu gpu.cu functions.c -o biterr_cuda -lcufft