On the performance evaluation of blind system identification in presence of side information
Qadri Mayyala, Karim Abed‐Meraim, Azzedine Zerguine · 2017
This paper investigates the impact of certain side information that are available in the channels and/or signals on the blind system identification through the Cramer-Rao Bound (CRB). More precisely, we considered a Single Input Multiple Output (SIMO) system, and studied, for different scenarios, the performance bounds for channel estimation in both deterministic and Bayesian cases. The latter correspond to the situations where side information is brought by either a pilot sequence (semi-blind case), channel sparsity (specular channel case) or certain signal's statistical properties such as the non-circularity. This analysis allows us to have a better understanding of the behavior of the blind channel estimation when the considered side information is taken into account.