Obradovic, D.; Na, C.; Szabo, A.Novel EM-based method for channel estimation in MIMO-OFDM systems10th International OFDM-WorkshopSeptember2005
Obradovic, D.; Szabo, A.; Na, C.Em-based enhancement of the Wiener pilot-aided channel estimation in MIMO-OFDM systems14th European Conference on Signal ProcessingSeptember2006
Na, C.; Obradovic, D.; Lupas-Scheiterer, R.; Steindl, G.; Goetz, F.-J.Synchronization performance of the precision time protocolIEEE International Symposium on Precision Clock Synchronization for Measurement, Control and Communication25-32October2007
Obradovic, D.; Lupas-Scheiterer, L.; Na, C.; Steindl, G.; Goetz, F.-J.Clock synchronization in industrial automation networks: comparison of different synchronization methodsInternational Conference on Informatics in Control, Automation and RoboticsMay2008
Lupas-Scheiterer, R.; Obradovic, D.; Na, C.; Steindl, G.; Goetz, F.-J.Synchronization performance of the precision time protocol: effect of clock frequency drift on the line delay computation7th IEEE International Workshop on Factory Communications Systems243-246May2008
Obradovic, D.; Na, C.; Lupas-Scheiterer, L.; Szabo, A.EM-based semi-blind channel estimation method for MIMO-OFDM communication systemsNeurocomputingpublished7110-122388-2398June2008
Na, C.; Obradovic, D.; Lupas-Scheiterer, R.; Steindl, G.; Goetz, F.-J.Enhancement of precision time protocol in automation networks with a line topologyIFAC 2008 World Conference8333-8338July2008
Na, C.; Hui, W., Obradovic, D.; Hanebeck, U.D.Fourier density approximation for belief propagation in wireless sensor networksIEEE International Conference on Multisensor Fusion and Integration for Intelligent SystemsAugust2008
Lupas-Scheiterer, R., Na, C.; Obradovic, D.; Steindl, G.; Goetz, F.-J.Synchronization performance of the precision time protocol in the face of slave clock frequency driftIEEE Conference on Automation Science and EngineeringAugust2008
Lupas-Scheiterer, R., Na, C.; Obradovic, D.; Steindl, G.; Goetz, F.-J.1μs-conform line length of the transparent clock mechanism defined by the Precision Time Protocol (PTP Version 2)IEEE International Symposium on Precision Clock Synchronization for Measurement, Control and CommunicationSeptember2008