Talk at the 2013 National Instruments Week Conference
Smart Grid Communications
Prof. Brian L. Evans
Department of Electrical and Computer Engineering
Wireless Networking and Communications Group
The University of Texas at Austin
August 7, 2013
Austin, Texas USA
Notes from IEEE Smart
Grid Short Course -
Tutorial paper -
Video demos of impulsive noise
Smart grids intelligently monitor and control energy flows to improve
efficiency and reliability of power delivery.
A local utility smart grid receives customer load profiles from smart
meters via a data concentrator.
Either powerline or wireless communications may be used on each link.
Powerline communication (PLC) over the 3-500 kHz unlicensed band is
severely limited by interference, e.g. from switching power electronics
and wireless signals.
We model interference as impulsive noise, develop transceiver methods
to mitigate it, and prototype ideas in our NI PLC testbed.
Our impulsive noise model has been adopted in the IEEE 1901.2 PLC standard.
Next-generation smart meters are likely to deploy the IEEE 802.15.4g-2012
standard and/or the emerging IEEE 802.11ah standard in the unlicensed
900 MHz band.
In this band, uncoordinated transmission leads to interference.
We show preliminary results in modeling the interference as impulsive
noise and developing receiver methods to mitigate it.
This research is supported by National Instruments, as well as SRC GRC ICSS
Task 1836.063 with sponsors Freescale Semiconductor, IBM and Texas
Instruments. The PLC project Web site is
Prof. Evans holds the Engineering Foundation Professorship at
The University of Texas at Austin.
He researches embedded real-time digital signal processing for
communication and image processing systems.
His research group develops theory, algorithms, design methods and
He has published 200+ peer-reviewed journal/conference papers, and
graduated 20 PhD and 9 MS students.
He was elevated to IEEE Fellow "for contributions in multicarrier
communications and image display".
He received a US National Science Foundation CAREER Award.