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Page History: SeminarsSpring2011

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Page Revision: Mon, 07 Mar 2011 14:59


Spring 2011 Presentation Schedule for CISTER Seminar Series



Weekly meetings will be held Fridays, 12PM



Previous Seminars

Feb 25 - Aida Ehyaei, ISEP, Portugal - Scalable Data Acquisition for Densely Instrumented Cyber-Physical Systems

Talk abstract: Consider the problem of designing an algorithm for acquiring sensor readings. Consider specifically the problem of obtaining an approximate representation of sensor readings where (i) sensor readings originate from different sensor nodes, (ii) the number of sensor nodes is very large, (iii) all sensor nodes are deployed in a small area (dense network) and (iv) all sensor nodes communicate over a communication medium where at most one node can transmit at a time (a single broadcast domain). We present an efficient algorithm for this problem, and our novel algorithm has two desired properties: (i) it obtains an interpolation based on all sensor readings and (ii) it is scalable, that is, its time-complexity is independent of the number of sensor nodes. Achieving these two properties is possible thanks to the close interlinking of the information processing algorithm, the communication system and a model of the physical world.

Speaker Bio.: Aida Ehyaei received her MSc. and BSc. degree in Electrical engineering from Isfahan University of technology, Iran. She is a PhD student in FEUP and does her research in CISTER Research Unit from September 2009. Currently, her research is in the field of Cyber Physical Systems.


Talk slides: pdf

Following Seminars

March 4 - Claro Noda, ISEP, Portugal - Channel Quality Metric for Interference-aware WSN

Talk abstract:WSN operate in ISM bands and share the spectrum with other wireless technologies, thus interference is a relevant problem. In order to minimise its effect nodes can dynamically adapt radio resources to accommodate network traffic, provided information about spectrum usage is available. We present a new channel quality metric that is based on availability of the channel over time. We do experiments to investigate its parameter space and also show our metric has strong correlation with Packet Reception Rate. This suggest that quantifying interference in the channel can help in adapting radio resources to boost reliability and bound latency in packet delivery. We then entertain some resource adaptation techniques where the metric can help optimising them according to the channel condition.

Speaker Bio.:Claro Noda graduated in Physics from University of Havana, Cuba in 1996. He worked in Scientific Instrumentation at the Superconductivity Laboratory, IMRE (1996-2001) where he completed his Master in Physical Sciences in 2000 and later continued research activities at the "Henri Poincaré" Complex Systems Group. He has also taught at the General Physics Department in the Faculty of Physics in Havana (2005-2008). Currently he's a MAP-Tele PhD student at University of Minho and a researcher at CISTER/ISEP, Portugal.

March 11 - Gurulingesh Raravi, ISEP, Portugal


March 18 - Vikram Gupta, ISEP, Portugal


March 25 - Paulo Balrarejo Sousa, ISEP, Portugal


April 1 - Hossein Fotouhi, ISEP, Portugal


April 8 - Ricardo Severino, ISEP, Portugal


April 15 - Antonio Barros, ISEP, Portugal


April 29 - Dakshina Dasari, ISEP, Portugal


May 6 - Maryam Vahabi, ISEP, Portugal


May 13 - Jose Marinho, ISEP, Portugal


May 20 - Artem Burmyakov, ISEP, Portugal


May 27 - Ricardo Garibay-Martinez, ISEP, Portugal


June 3 - Muhammad Ali Awan, ISEP, Portugal


June 17 - Borislav Nikolic, ISEP, Portugal


June 24 - Suhas Aggarwal, ISEP, Portugal


July 1 - Konstiantyn Berezovskyi, ISEP, Portugal


July 8 - Hazem Ali, ISEP, Portugal


July 15 - Claudio Maia, ISEP, Portugal

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