Adaptive LDPC Decoding for Multipath Channels

Presented low-density parity-check (LDPC) decoding exhibits poor BER performance for multipath channel (MPC). To solve the problem, this paper proposes an adaptive LDPC decoding system, which composes two parts: adaptive equalizer and LDPC decoder. In this scheme, adaptive equalizer resorts to the training sequence transmitted from transmitter, removes the multipath interference (MPI), then LDPC decoder can work as in AWGN channel and exhibit good BER performance. Furthermore the decision on the exact decoding performance can be taken a posterior in the receiver and therefore requires no signaling whatsoever between sender and receiver. The simulations show that the proposed decoding system is feasible to resume the data to be translating in MPC