Asymptotic Analysis and Design of Iterative Receivers for Non Linear ISI Channels

Bouchra Benammar (1) , Nathalie Thomas (1, 2) , Charly Poulliat (1, 2) , Marie-Laure Boucheret (1, 2) , Mathieu Dervin (3)

1 IRIT-SC - Signal et Communications
2 Toulouse INP - Institut National Polytechnique (Toulouse)
3 THALES [France]

In this paper, iterative receiver analysis and design for non linear satellite channels is investigated. To do so, an EXtrinsic Information Transfer (EXIT) chart-based optimization is applied using two major assumptions: the equalizer outputs follow a Gaussian Mixture distribution since we use non-binary modulations and partial interleavers are used between the Low Density Parity Check (LDPC) code and the mapper. Achievable rates, performance and thresholds of the optimized receiver are analysed. The objective in fine is to answer the question: Is it worth optimizing an iterative receiver for non linear satellite channels?

Mots clés: Volterra series; Iterative equalization; LDPC code design; Optimization

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]; Traitement du signal et de l'image [eess.SP]; Traitement des images [eess.IV]; Vision par ordinateur et reconnaissance de formes [cs.CV]; Intelligence artificielle [cs.AI]

Bouchra Benammar, Nathalie Thomas, Charly Poulliat, Marie-Laure Boucheret, Mathieu Dervin. Asymptotic Analysis and Design of Iterative Receivers for Non Linear ISI Channels. 8th International Symposium on Turbo Codes & Iterative Information Processing - ISTC (2014), Aug 2014, Bremen, Germany. pp. 173-177. ⟨hal-01147241⟩