Performance Comparison and Optimization of Channel Coding for Acoustic Communication in Shallow Waters
The coded communications using non-coherent orthogonal modulation and capacity-approaching binary channel codes namely low-density parity check code (LDPC) and turbo code are investigated in this paper with the focus on the main three characteristic effects of an underwater channel, namely, multi-path propagation, Doppler spread and ambient noise. Additionally, a new method was implemented and tested successfully to identify and eliminate the highamplitude noise from the received dataset.