LDPC-based multi-relay lossy forwarding for correlated source transmission over orthogonal Rayleigh fading channels
Résumé
In this paper, we design a communication and coding strategy for Lossy Forwarding (LF) systems with multiple relay nodes or helpers based on Low-Density Parity-check Codes (LDPC) with message passing decoding applied on a Tanner-graph that maps all the network. The system performance is investigated under the cases of a fixed number of helpers, and a random multiple shifted-Poisson distributed helpers for orthogonal Rayleigh fading channels. All the practical results will be also compared and validated with respect to theoretical outage probabilities.