Prof. Géza Kolumbán
Dr.habil, D.Sc., Ph.D.
Full CV in PDF
List of Publications
List of citations
IEEE CAS Magazine
Use of SDE Concept
Proceedings of the
Welcome to the fascinating world of advanced wireless telecommunications
Method of assessment
IEEE Standards, data sheets and study aids
The two basic trends of our time are as follows:
In Software Defined Electronics (SDE), a brand new approach introduced recently,
the telecommunication systems and measurement equipment are implemented in
baseband (BB) on a LabVIEW, Matlab or C++ platform and the transformation
between the BB and RF/microwave domain is performed by a universal
hardware (HW) device. Because SDE implements all signal processing in SW, the
SDE approach offers the flexibility required in Cognitive Radio (CR), Software Defined
Radio (SDR) and Virtual Instrumentation (VI).
Everything goes wireless, and
Everything becomes software defined.
The teaching material of this subject is completed with the theory
and practice of software defined electronics. To equip the students with the
required theoretical and practical skill, laboratory experiments are also offered
addition to the lectures where a 915-MHz FSK radio link and different QPSK transmitters
are implemented and tested.
In the radio link built in the laboratory experiment one networking device is implemeneted
by a conventional HW-type FSK transceiver (Texas, TRF6900EVM), while the other
device is implemented by a Universal Software Radio Peripheral (National Instrument,
For further information on the SDE approach refer to the following materials:
G. Kolumbán, T. Krébesz and F. C. M. Lau,
"Theory and Application of Software Defined Electronics:
Design Concepts for the Next Generation of Telecommunications and Measurement Systems,"
IEEE CAS Magazine, Second Quarter, 2012, no. 2, vol. 12, pp. 8-34.
"University Ivory Tower: To Stay in or Break Out, SDE: A Direct Jump from Scientific Research to Industrial Applications,"
invited plenary talk at 2015 International Symposium on Nonlinear Theory and its Applications, Hong Kong SAR, China,
December 1-4, 2015, in Proc. NOLTA'15, pp. 756-768.
Hardware platforms used in the EIE579 laboratory experiments
Testing a 915-MHz FSK radio link in EIE Communications Laboratory (DE502). The green Printed Circuit Board (PCB) on
the left side is the TRF6900 Evaluation Module, while the grey box on the right side is the USRP device
Testing a QPSK transmitter implemented on USRP platform with a raised cosine pulse shaping filter in EIE Communications Laboratory (DE502)
PXI-based universal wireless platform developed in the Laboratory of Software Defined Electronics, Budapest, Hungary
Testing of an FM-DCSK link in a multipath office environment. The PXI-based universal wireless platform can be seen in the upper left corner, the Front Panel (i.e. the user interface) of SDE implementation is visualizad on the monitor shown on the lower part of picture, while a stand-alone Rohde & Schwarz spectrum analyzer used to check the RF spectrum can be seen in the upper rigth corner.