|
Title:
|
Modelling channel estimation error in LTE link level simulations
|
|
Author:
|
Serra, Albert; Olmos Bonafé, Juan José; Lema Rosas, María Ángel
|
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils |
|
Abstract:
|
Channel estimation is a key aspect for the
performance of the physical layer in all MIMO-OFDM
systems. In order to obtain realistic performance assessments
from the LTE link level simulator, channel estimation errors
must be taken into account. Implementing a detailed channel
estimation algorithm may lead to long simulation time, in
particular for wideband MIMO transmission modes where
many channels have to be estimated, and for procedures like
Wiener filtering which require matrix multiplications. In this
paper we propose to simulate channel estimation errors by a
Gaussian additive noise error model. The noise variance of the
model is calibrated as a function of the received SNR for
different channel models and Doppler spreads. The model is
validated by comparing the BLER curves obtained with the
model with the curves obtained when using real channel
estimation. |
|
Abstract:
|
Peer Reviewed |
|
Subject(s):
|
-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes
-Microwave antennas
-Antenes de microones |
|
Rights:
|
|
|
Document type:
|
Article - Published version
Conference Object |
|
Share:
|
|
