A comparison of iterative receivers for the non linear satellite channel

Bouchra Benammar (1) , Nathalie Thomas (2, 3) , Charly Poulliat (2, 3) , Marie-Laure Boucheret (2, 3) , Mathieu Dervin (4)

1 IRT Saint Exupéry - Institut de Recherche Technologique
2 IRIT-SC - Signal et Communications
3 Toulouse INP - Institut National Polytechnique (Toulouse)
4 TAS - Thales Alenia Space [Toulouse]

This paper presents a comparison of different in-stances of advanced iterative receivers for the non linear satellite channel. A comparison of the performance and complexity of each of the selected receivers is drawn. It is shown that the frequency domain implementation of the linear equalizer achieves good performance complexity trade-off. The cost to pay for the frequency domain processing is the addition of a Cyclic Prefix (CP) to ensure the blocks orthogonality. The consequence is a channel dependent spectral efficiency loss. We thus investigate on the efficiency gain related to the CP omission for frequency domain equalizers for different block sizes and show that for large block sizes, the equalizer's performance is not much sacrificed.

Mots clés: Complexity theory; Equalizers; Satellites; Frequency-domain analysis; Satellite broadcasting; Receivers; Kernel

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. A comparison of iterative receivers for the non linear satellite channel. 16th Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2015), Jun 2015, Stockholm, Sweden. pp. 520-524. ⟨hal-01461702⟩