The application of bit-interleaved coded modulation with iterative decoding (BICM-ID) was recently considered to improve both the spectral efficiency and error performance in Class-A impulsive noise environment. Such a noise model is widely used in power line communications, where impulsive noise interference is mainly generated by electrical appliances. This paper provides the EXIT chart analysis to illustrate the convergence properties of different mappings of 8PSK in BICM-ID. The superior performance of BICM-ID compared to the OFDM technique is also demonstrated. Keywords— Impulsive noise, power line communications, bitinterleaved coded modulation, iterative decoding, signal mapping, EXIT chart, OFDM.
Trung Q. Bui, Ha H. Nguyen