On-line Bayesian Cramer-Rao Bounds for OFDM Slowly Varying Rayleigh Multi-path Channel Estimation

Hussein Hijazi (1) , Laurent Ros (1)

1 GIPSA-C2S - GIPSA - Communication, Signal et Sécurité

The on-line Bayesian Cramer-Rao (BCRB) lower bound for the dynamic estimation of a time-varying multi-path Rayleigh channel in 4-QAM OFDM system is considered. In case of negligible channel variation within one symbol and delay related information, true BCRB for data-aided (DA) context, and two closed-form expressions for non-data aided (NDA) context are derived.

Mots clés: Rayleigh complex gains; Bayesian Cramer-Rao Bound; OFDM; Rayleigh complex gains.

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Hussein Hijazi, Laurent Ros. On-line Bayesian Cramer-Rao Bounds for OFDM Slowly Varying Rayleigh Multi-path Channel Estimation. ISWCS 2008 - IEEE International Symposium on Wireless Communication Systems, Oct 2008, Reykjavik, Iceland. 5 p. ⟨hal-00325326⟩