Title :
Minimum overhead burst synchronization for OFDM based broadband transmission
Author :
Speth, Michael ; Daecke, Dirk ; Meyr, Heinrich
Author_Institution :
ISS, Tech. Hochschule Aachen, Germany
Abstract :
In this paper the subject of training data overhead in burst oriented transmission systems using OFDM is addressed. Previous work has shown that burst synchronization for such scenarios is possible. However, the training data needed in some cases will significantly decrease the usable bandwidth. In order to minimize overhead we analyze the impact of synchronization errors on OFDM and derive a suitable optimization criterion. A novel training data format is introduced that allows to tailor the overhead according to the actual requirements. Using theoretical analysis and simulation the training data overhead can be decreased significantly without loss in performance
Keywords :
OFDM modulation; broadband networks; optimisation; synchronisation; OFDM based broadband transmission; burst oriented transmission systems; minimum overhead burst synchronization; optimization criterion; performance; synchronization errors; training data overhead; usable bandwidth; Analytical models; Broadcast technology; Frequency synchronization; Gaussian noise; OFDM; Performance analysis; Performance loss; Signal processing; Training data; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.776494