Power-Delay-Profile-Based MMSE Channel Estimations for OFDM Systems

This paper deals with the problem of the channel estimation of orthogonal frequency division multiplexing (OFDM) signals transmitted through a time-varying fading channel. We show that an accurate power delay profile (PDP) estimator can be obtained by utilizing the cyclic redundancy induced by a cyc...

Full description

Saved in:
Bibliographic Details
Published in:Electronics (Basel) 2023-02, Vol.12 (3), p.510
Main Authors: Lim, Sungmook, Wang, Hanho, Ko, Kyunbyoung
Format: Article
Language:English
Subjects:
Communication
Estimation theory
Fading channels
Methods
Mobile communication systems
Orthogonal Frequency Division Multiplexing
Parameter estimation
Pilots
Redundancy
Vehicles
Wireless communication systems
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper deals with the problem of the channel estimation of orthogonal frequency division multiplexing (OFDM) signals transmitted through a time-varying fading channel. We show that an accurate power delay profile (PDP) estimator can be obtained by utilizing the cyclic redundancy induced by a cyclic prefix (CP), which can be applicable to OFDM systems with insufficient pilot or training symbols (IEEE 802.11p/WAVE system), and then a least mean square error (MMSE) channel estimation scheme can be obtained in a manner based on the estimated PDP. The simulation results highlight the benefit of the proposed methods compared with the state-of-the-art standard and three achievable performance bounds.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics12030510