Joint turbo equalization and cancelation of nonlinear distortion effects in MC-CDMA signals

摘要

In this paper, we consider low-PMEPR (Peak-to-Mean EnvelopePower Ratio) MC-CDMA (Multicarrier Coded DivisionMultiple Access) schemes. We develop frequencydomainturbo equalizers combined with an iterative estimationand cancellation of nonlinear distortion effects. Ourreceivers have relatively low complexity, since they allowFFT-based (Fast Fourier Transform) implementations. Theproposed turbo receivers allow significant performance improvementsat low and moderate SNR (Signal-to-Noise Ratio),even when a low-PMEPR MC-CDMA transmission isintended.