Códigos LDPC Não Binários Aplicados a Sistemas de Comunicacão Cooperativa

This work analyzes, through computer simulations,coded cooperative communication systems with a single relayand using the amplify-and-forward (AF) protocol. Nonbinarylow-density parity-check (LDPC) codes are assumed to be used atthe source and a fast Fourier transform (FFT)-based decodingalgorithm is employed at the destination. The performance ofa nonbinary coded system is compared to that of the binaryone. In addition, for the nonbinary case, comparisons of thecoded systems (cooperative and noncooperative) are carried outfor some typical cooperative scenarios.