这是基于SPW仿真软件，做的QPSK信号产生、调制、解调的性能仿真图样-This is based on SPW simulation software, to do QPSK signal generation, modulation, demodulation performance simulation of pattern

OnPerformanceLimitsofDFTSpreadOFDMSystems DFT Spread OFDM has been proposed recently to reduce the Peak to Average Power Ratio (PAPR) of conventional OFDM transmission. Besides PAPR reduction, an important implication of DFT Spreading is that the ind

Our system is a 4×4 MIMO Rayleigh channel with uncorrelated distributions. The modulation used is QPSK. We wish to simulate the performance of the system with the following configurations: I. Uncoded system (𝑟 =4) In this scheme transmitte