Applied research of Bit Interleaved Coded technology based on Decision Feedback Equalizer

This paper proposes a hard Decision Feedback Equalizer (DFE) Bit-Interleaved Coded Modulation (BICM) system with adaptive equalizer under the Inter Symbol Interference (ISI) channel. The Bit interleaver of this system changes the burst error into random error which overcomes the error extension of DEF, and it has the capability to estimate and trace the channel quickly and adaptively, and it is also extensible. The simulations made in typical ISI channel module show that the system has the ability to equate the ISI and have nice anti-BER performance with iterative decoding.