Concatenated coding schemes and interleaving techniques over Rayleigh fading ionospheric channels channels

摘要

In this paper the performance of a concatenated coding scheme is evaluated over a slow Rayleigh fading HF ionospheric link with additive white Gaussian noise (AWGN). Well-known Ungerboeck TCM techniques onto an 8-PSK signal set are used as inner codes and Reed-Solomon block codes as outer odes. The coded/modulated signal is further differentially encoded before transmission to combat random phase changes.