News & Events

EE Postdoc receives an IEEE GLOBECOM Best Paper Award

01/05/2010
Categories: Research, In-the-news

EE Postdoctoral Scientist Dr. David Hay (http://www.ee.columbia.edu/~hdavid/) received an IEEE GLOBECOM Best
Paper Award for his paper "Crosstalk-Preventing Scheduling in AWG-Based
Cell Switches" (co-authored with Andrea Bianco and Fabio Neri from
Politecnico di Torino, Italy). GLOBECOM is one of the major conferences
in the area of communications. Over 3,400 papers were submitted to the
conference, from which about 1,200 papers were accepted. Hay's paper was
selected as the best paper in GLOBECOM's Optical Networks and Systems
Symposium.

The paper focuses on AWG-based optical switching fabrics. These
switching fabrics are affected by coherent crosstalk, that can
significantly impair system operation when the same wavelength is used
simultaneously on several input ports to forward data to output ports.
To permit large port counts in a N×N AWG, the scheduling of
transmissions across the AWG must therefore prevent switch
configurations that generate large crosstalk. The paper studies the
properties and the existence conditions of switch configurations able to
control coherent crosstalk. The results show that it is possible to keep
an AWG-based switch with large port counts in the feasible operational
region without significant performance degradation, provided that a
proper scheduling algorithm is used.

Dr. Hay is working with Prof. Gil Zussman for his postdoc research at
Columbia University.