Quantize-Map-Forward (QMF) Relaying: Testbed Implementation and First Results
May 15, 2013
from 10:00 AM to 11:00 AM
|Where||Engr. IV Bldg., Faraday Room 67-124|
|Contact Name||Prof. Suhas Diggavi|
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ARNI laboratory at EPFL
increasingly becoming a part of current and upcoming standards, with
Decode-and-Forward (DF) and Amplify-and-Forward (AF) being the main two
competing strategies. However, recent work in information theory has indicated
that neither of these two strategies is close to optimal for arbitrary networks
- while a third, recently introduced strategy, Quantize-Map-Forward (QMF), is.
However, the information theoretic analysis assumes infinite length coding, no
complexity constraints on the transceivers, and perfect channel and noise
estimates for decoding. Although QMF is promising approach for relaying, there
are no experiment-based results that verify its potential.
In this talk we present a practical design and testbed implementation of QMF relaying. Our testbed operates using the physical layer procedures of WiFi. We opt for WiFi given its popularity and wide spread use for a number of applications in development, such as smart homes. We present the first experimental results that compare QMF, AF, and DF in a realistic indoor setting.
Dr. Melissa Duarte is a research associate in the ARNI laboratory at EPFL, where she has been since September 2012. She received her PhD from the Department of Electrical and Computer Engineering at Rice University in August 2012. She is a well-renowned expert in wireless software radio testbeds and has been a principal contributor to WARPlab an interactive wireless development platform. Her PhD work pioneered the implementation of full-duplex wireless radios which have received a lot of recent attention.