eprintid: 4454
rev_number: 8
eprint_status: archive
userid: 381
dir: disk0/00/00/44/54
datestamp: 2021-06-18 10:55:39
lastmod: 2021-06-18 10:55:39
status_changed: 2021-06-18 10:55:39
type: conference_item
metadata_visibility: show
creators_name: Le, Trung Thanh
creators_name: Karim, Abed Meraim
creators_name: Nguyen, Linh Trung
creators_id: letrungthanhtbt@gmail.com
creators_id: karim.abed-meraim@univ-orleans.fr
creators_id: linhtrung@vnu.edu.vn
title: Performance lower bounds of blind system identification techniques in the presence of channel order estimation error
ispublished: inpress
subjects: Communications
divisions: avitech
abstract: In this paper, we derive two performance lower bounds
for blind system identification in the presence of channel order
estimation error. The first bound deals with models where
both the channel and unknown symbols are deterministic, and
obtained via the constrained misspecified Cramer-Rao bound
(MCRB). When transmitted symbols are unknown random variables i.i.d. drawn from a stochastic Gaussian process, variance
of any unbiased estimators is always higher than the second
MCRB bound. Both proposed MCRB bounds reduce to the
classical Cramer-Rao bounds when the channel order is known
or accurately estimated. Besides, the stochastic MCRB is lower than the deterministic bound, especially at high SNRs
date: 2021-08
date_type: published
full_text_status: none
pres_type: paper
event_title: 29th European Signal Processing Conference
event_location: Dublin, Ireland
event_dates: August, 2021
event_type: conference
refereed: TRUE
citation:   Le, Trung Thanh and Karim, Abed Meraim and Nguyen, Linh Trung  (2021) Performance lower bounds of blind system identification techniques in the presence of channel order estimation error.  In: 29th European Signal Processing Conference, August, 2021, Dublin, Ireland.    (In Press)