elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Time-Variant Maximum Likelihood Channel Estimation in Mobile Radio Navigation Systems

Groh, Ingmar and Staudinger, Emanuel and Sand, Stephan (2011) Time-Variant Maximum Likelihood Channel Estimation in Mobile Radio Navigation Systems. 74th IEEE Vehicular Technology Conference (VTC-FAll), 5-8 Sep 2011, San Francisco, CA, USA.

[img] PDF - Registered users only
163kB

Abstract

This paper presents a novel time-variant ML channel estimator for mobile radio navigation receivers. Our novel ML channel estimator enables the coherent noise averaging over several hundred codewords for time-variant channel phasors. Compared to the conventional incoherent summation of log-likelihood functions or compared to the conventional time-invariant log-likelihood functions, we avoid the squaring loss (SL) completely. The novel time-variant log-likelihood function compared to the conventional time-invariant log-likelihood function yields an SNR gain of up to 15 dB for an observation interval of 200ms. Additionally, since the novel time-invariant log-likelihood functions only require a Slepian subspace of a small dimension, the computational complexity of our novel time-variant ML channel estimation does not exceed the computational complexity of the conventional time-invariant ML channel estimation.

Item URL in elib:https://elib.dlr.de/69862/
Document Type:Conference or Workshop Item (Speech)
Title:Time-Variant Maximum Likelihood Channel Estimation in Mobile Radio Navigation Systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Groh, IngmarUNSPECIFIEDUNSPECIFIED
Staudinger, EmanuelUNSPECIFIEDUNSPECIFIED
Sand, StephanUNSPECIFIEDUNSPECIFIED
Date:2011
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:spread spectrum system, synchronization, maximum likelihood estimation, multipath mitigation
Event Title:74th IEEE Vehicular Technology Conference (VTC-FAll)
Event Location:San Francisco, CA, USA
Event Type:international Conference
Event Dates:5-8 Sep 2011
Organizer:IEEE Vehicular Technology Society
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Vorhaben GNSS2/Neue Dienste und Produkte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Sand, Dr Stephan
Deposited On:07 Oct 2011 09:26
Last Modified:29 Nov 2016 11:58

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.