DocumentCode :
3359868
Title :
Downlink based Intercell Time Synchronization using Maximum Likelihood Estimation
Author :
Jordan, Markus ; Senst, Martin ; Cui, Yang ; Ascheid, Gerd ; Meyr, Heinrich
Author_Institution :
RWTH Aachen Univ, Aachen
fYear :
2007
fDate :
1-5 July 2007
Firstpage :
1
Lastpage :
5
Abstract :
A method to establish a time synchronization for base stations in a cellular network is derived based on the maximum likelihood estimation principle. Its performance is analyzed and compared to a heuristic technique from the literature. The main feature of these synchronization algorithms is that a time synchronization of the base stations is achieved by measurements from the users in the downlinks that are associated to the base stations. The steady-state is reached after a low number of iterations and a low residual error is obtained. The good accuracy allows the application of this algorithm in the context of single frequency networks (SFN), where a high degree of time-synchronization between participating base stations is required.
Keywords :
cellular radio; iterative methods; maximum likelihood estimation; radio networks; synchronisation; base stations; cellular network; downlink based intercell time synchronization; heuristic technique; maximum likelihood estimation; residual error; single frequency networks; Base stations; Broadcasting; Delay effects; Downlink; Frequency synchronization; Global Positioning System; Maximum likelihood estimation; OFDM; Signal processing algorithms; Time measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mobile and Wireless Communications Summit, 2007. 16th IST
Conference_Location :
Budapest
Print_ISBN :
963-8111-66-6
Electronic_ISBN :
963-8111-66-6
Type :
conf
DOI :
10.1109/ISTMWC.2007.4299174
Filename :
4299174
Link To Document :
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