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Exploiting Position Information for Synchronization in Coordinated Multipoint Transmission

Dammann, Armin and Raulefs, Ronald (2013) Exploiting Position Information for Synchronization in Coordinated Multipoint Transmission. 77th IEEE Vehicular Technology Conference (VTC 2013 Spring), 02-05 Jun. 2013, Dresden, Germany.

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6692558&tag=1


Cellular communications systems suffer from interference in particular at cell edge regions. This is also the case for downlink synchronization signals. Such synchronization signals are base station specific and uperimpose at a mobile terminal with different delays and amplitudes. This causes inter cellular interference depending on the cross correlation properties of the particular synchronization signals. Assuming knowledge about the positions of the serving and interfering base stations and having available a position estimate of the mobile terminal, there is a-priori information about the different signal propagation delays at the mobile terminal's position. Using this information, synchronization signals received from adjacent base stations can be timely related. For this reason, former interference can at least partly be turned into useful signal and exploited for improving synchronization performance especially at the critical cell edge regions. Within this paper we evaluate the benefit of position information for a mobile terminal in order to improve mobile terminal synchronization performance. The analysis is based on calculating the Cramer-Rao lower for this particular problem. In particular, we will derive additional Fisher information about OFDM symbol timing from position information about the mobile terminal.

Item URL in elib:https://elib.dlr.de/81041/
Document Type:Conference or Workshop Item (Speech)
Title:Exploiting Position Information for Synchronization in Coordinated Multipoint Transmission
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dammann, ArminArmin.Dammann (at) DLR.deUNSPECIFIED
Raulefs, RonaldRonald.Raulefs (at) DLR.deUNSPECIFIED
Date:2 June 2013
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Synchronization, LTE, Location aided, Cramer-Rao lower Bound
Event Title:77th IEEE Vehicular Technology Conference (VTC 2013 Spring)
Event Location:Dresden, Germany
Event Type:international Conference
Event Dates:02-05 Jun. 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben GNSS2/Neue Dienste und Produkte
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Institute of Communication and Navigation > Communications Systems
Deposited By: Dammann, Dr.-Ing. Armin
Deposited On:14 Jul 2014 13:30
Last Modified:14 Jul 2014 13:30

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