Joint turbo coding and modulated coding for channel with intersymbol interference

Modulated codes as an effective technique to mitigate the intersymbol inter ference (ISI) have been studied recently, which can transfer the multipath interference into implicit diversity and provide a certain coding gain comp ared with the ideal additive white Gaussian noise (AWGN) channel. Turbo cod es have been proved as an extremely powerful error correction coding techni que for AWGN, which can be used to approach the channel capacity. In this p aper, we propose a joint turbo coding and modulated coding for the ISI chan nels with AWGN and investigate its performance by simulation. Simulation re sults show that the proposed joint coding method is an effective technique to mitigate the ISI and strong noise simultaneously. In addition, it can ap proach the limit of ISI channel information rate.