Minimal state noncoherent symbol MAP detection of Continuous-Phase-Modulations

Charles-Ugo Piat-Durozoi (1) , Charly Poulliat (1, 2) , Nathalie Thomas (1, 2) , Marie-Laure Boucheret (1, 2) , Guy Lesthievent (3) , Emmanuel Bouisson (3)

1 IRIT-SC - Signal et Communications
2 Toulouse INP - Institut National Polytechnique (Toulouse)
3 CNES - Centre National d’Études Spatiales [Paris]

Trellis-based detector is an effective method to demodulate non-coherent continuous-phase modulated sequences. Most of them have been derived for the maximum likelihood sequence estimation setting, while only few contributions have been proposed for the maximum a posteriori (MAP) symbol detection, required when soft information is needed for iterative detection and decoding. In this letter, we derive a new symbol MAP non-coherent receiver with reduced state space representation compared with the existing extended state-space-based approaches. While having the same performance, it enables a lower complexity.

Mots clés: Continuous phase modulation; Spectral efficiency; Trellis-based detector; Non-coherent; Mutual information rate

Domaines: Recherche d'information [cs.IR]

Charles-Ugo Piat-Durozoi, Charly Poulliat, Nathalie Thomas, Marie-Laure Boucheret, Guy Lesthievent, et al.. Minimal state noncoherent symbol MAP detection of Continuous-Phase-Modulations. IEEE Communications Letters, 2018, 22 (10), pp.2008-2011. ⟨10.1109/LCOMM.2018.2857773⟩. ⟨hal-02279433⟩