Petros Spachos

Electrical and Computer Engineering, University of Toronto

Short Bio

Welcome to my academic website!

I am a post doctoral researcher with the department of Electrical and Computer Engineering at the University of Toronto, working with Professor Alberto Leon-Garcia and Professor Dimitrios Hatzinakos.

I received my Ph.D. in 2014 and my M.A.Sc. in 2010 from the same department, under the supervision of Professor Dimitrios Hatzinakos. Prior to joining University of Toronto, I received my Diploma degree in 2008 from the department of Electronics and Computer Engineering at the Technical University of Crete, Greece under the supervision of Professor Stavros Christodoulakis.

Education

• Ph.D. student , Electrical and Computer Engineering, University of Toronto, Sept. 2010 - Aug. 2014
  Ph.D. Thesis: "Energy Efficient Routing Protocol Design and Implementation for Self-powered Wireless Sensor Networks"
  Advisor: Professor Dimitrios Hatzinakos
  
• M.A.Sc., Electrical and Computer Engineering, University of Toronto, Sept. 2008 - Aug. 2010
  M.A.Sc. Thesis: "Opportunistic Routing for Enhanced Source-Location Privacy in Wireless Sensor Networks"
  Advisor: Professor Dimitrios Hatzinakos
• Diploma, Electronics and Computer Engineering, Technical University of Crete, Sept. 2002 - Aug. 2008
  Diploma Thesis: "Semantic Parser for Greek Natural Language Processing and Web Applications"
  Advisor: Professor Stavros Christodoulakis

Research

My research interests span primarily in the area of Wireless Sensor Networks (WSNs), as well as allied areas such as network protocols, network programming and network security. I am mainly working on the development, simulation and implementation of multi-hop routing protocols, cognitive radio and opportunistic networks. I am familiar with network simulators such as OMNET++ ,NS2 and NS3 as well as C and python programming.

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Publications

IEEE Copyright Statement: IEEE owns the copyright to the material under the headings "Journal/Conference Publications" included below that is published by the IEEE. Personal use of this material is permitted. However, permission to use this material for any other purposes must be obtained from the IEEE by sending an email to pubs-permissions@ieee.org.

Journal Publications

• Real-Time Indoor Carbon Dioxide Monitoring through Cognitive Wireless Sensor Networks,
  P. Spachos, D. Hatzinakos,
  in IEEE Sensors Journal - accepted.


• Scalable Dynamic Routing Protocol for Cognitive Radio Sensor Networks,
  P. Spachos, D. Hatzinakos,
  in IEEE Sensors Journal, Volume 14, Issue 7, July 2014.
  ( BibTeX | PDF )

Conference Publications

2016

• Impact of Technical and Content Quality on Overall Experience of OTT video,
  W. Li, P. Spachos, M. Chignell , A. Leon- Garcia, L. Zucherman, J. Jiang,
  IEEE Consumer Communications and Networking Conference (CCNC ) 2016 - to appear.

2015

• Self-Powered Wireless Sensor Network for Environmental Monitoring,
  P. Spachos, D. Hatzinakos,
  IEEE IEEE Global Communications (GLOBECOM ) 2015 - Workshop on Green Standardizations and Industry Issues for ICT and Relevant Technologies (GSICT) - to appear.


• Acceptability and Quality of Experience in Over-the-top Video,
  P. Spachos, W. Li, M. Chignell , A. Leon- Garcia, L. Zucherman, J. Jiang,
  IEEE International Conference on Communications (ICC ) 2015 - Workshop on Quality of Experience-based Management for Future Internet Applications and Services (QoE-FI).
  ( BibTeX | PDF )


• QoS and Energy-Aware Dynamic Routing in Wireless Multimedia Sensor Networks,
  P. Spachos, D. Toumpakaris, D. Hatzinakos,
  IEEE International Conference on Communications (ICC ) 2015, London, UK, June 2015.
  ( BibTeX | PDF )


• Malware Detection in the Cloud under Ensemble Empirical Mode Decomposition,
  A. K. Marnerides, P. Spachos, P. Chatzimisios, A. Mauthe
  IEEE International Conference on Computing, Networking and Communications (ICNC ) 2015, Anaheim, CA, Feb. 2015.

2014

• Evaluating the Impact of Next Node Selection Criteria on Quality of Service Dynamic Routing,
  P. Spachos, P. Chatzimisios, D. Hatzinakos,
  IEEE International Conference on Communications (ICC ) 2014, Sydney, Australia, June 2014.
  ( BibTeX | PDF )


• Angle-based Dynamic Routing Scheme for Source Location Privacy in Wireless Sensor Networks,
  P. Spachos, D. Toumpakaris, D. Hatzinakos,
  IEEE Vehicular Technology Conference (VTC ) 2014 - Spring, Seoul, Korea, May 2014.
  ( BibTeX | PDF )


• Content Relevance Opportunistic Routing for Wireless Multimedia Sensor Networks,
  P. Spachos, A. K. Marnerides, D. Hatzinakos,
  IEEE International Conference on Computer Communications (INFOCOM ) 2014 - Workshop on Communication and Networking for Video, Toronto, Canada, April 2014.
  ( BibTeX | PDF )

2013

• Data relevance dynamic routing protocol for Wireless Visual Sensor Networks,
  P. Spachos, D. Hatzinakos,
  18^th International Conference on Digital Signal Processing (DSP ) 2013, Santorini, Greece, July 2013.
  ( BibTeX | PDF )


• Cognitive Networking with Opportunistic Routing in Wireless Sensor Networks,
  P. Spachos, P. Chatzimisios, D. Hatzinakos,
  IEEE International Conference on Communications (ICC ) 2013, Budapest, Hungary, June 2013.
  ( BibTeX | PDF )


• Energy Efficient Cognitive Unicast Routing for Wireless Sensor Networks,
  P. Spachos, P. Chatzimisios, D. Hatzinakos,
  IEEE Vehicular Technology Conference (VTC ) 2013 - Spring, Dresden, Germany, June 2013.
  ( BibTeX | PDF )

2012

• Energy Aware Opportunistic Routing in Wireless Sensor Networks,
  P. Spachos, P. Chatzimisios, D. Hatzinakos,
  IEEE Global Telecommunications Conference (GLOBECOM ) 2012, Anaheim, CA, Dec. 2012.
  ( BibTeX | PDF )


• Computational Intelligence for User and Data Classification in Hospital Software Development,
  M. Mohammadian, D. Hatzinakos, P. Spachos,
  8^th Artificial Intelligence Applications and Innovations Conference (AIAI ) 2012, Thessaloniki, Greece Sept. 2012.
  ( BibTeX | PDF )


• Opportunistic Multihop Wireless Communications with Calibrated Channel Model,
  P. Spachos, L. Song, D. Hatzinakos,
  IEEE International Conference on Communications (ICC ) 2012, Ottawa, Canada June 2012.
  ( BibTeX | PDF )


• Comparison of Traditional and Opportunistic Multihop Routing in Wireless Networking Scalability,
  P. Spachos, L. Song, D. Hatzinakos,
  26^th Biennial Symposium on Communications (QBSC ) 2012, Kingston, Canada, May 2012.
  ( BibTeX | PDF )

2011

• Performance Evaluation of Wireless Multihop Communications for an Indoor Environment,
  P. Spachos, F. Bui, L. Song, Y. Lostanlen, D. Hatzinakos,
  IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC ) 2011, Toronto, Canada, Sept. 2011.
  ( BibTeX | PDF )


• Improving Source-Location Privacy Through Opportunistic Routing in Wireless Sensor Networks,
  P. Spachos, L. Song, F. Bui, D. Hatzinakos,
  IEEE Symposium on Computers and Communications (ISCC ) 2011, Corfu, Greece, July 2011.
  ( BibTeX | PDF )


• Feasibility Study of Photoplethysmographic Signals for Biometric Identification,
  P. Spachos, J. Gao, D. Hatzinakos,
  17^th International Conference on Digital Signal Processing (DSP ) 2011, Corfu, Greece, July 2011.
  ( BibTeX | PDF )


• Performance Comparison of Opportunistic Routing Schemes in Wireless Sensor Networks,
  P. Spachos, L. Song, D. Hatzinakos,
  9^thAnnual Communication Networks and Services Research Conference (CNSR ) 2011, Ottawa, Canada, May 2011.
  ( BibTeX | PDF )

2010

• Opportunistic Routing for Enhanced Source-Location Privacy in Wireless Sensor Networks
  P. Spachos, L. Song, D. Hatzinakos,
  25^th Biennial Symposium on Communications, (QBSC ) 2010, Kingston, Canada, May 2010.
  ( BibTeX | PDF )

Demonstrations and Posters

• Smart Room Monitoring through Wireless Sensor Networks in Software Defined Infrastructures,
  P. Spachos, J. Lin, H. Bannazadeh, A. Leon-Garcia,
  IEEE Cloud Networking (CloudNet ) 2015 - Niagara Falls, Canada, Oct. 2015 - to appear.
  
  
• SEA-OR: Spectrum and Energy Aware Opportunistic Routing for Self-Powered Wireless Sensor Networks,
  P. Spachos, D. Hatzinakos,
  ACM Mobile Computing and Networking (MobiCom ) 2014 - Maui, Hawaii, Sept. 2014.
  ( BibTeX | Abstract | Poster)


• Cognitive Networking in a Self-Powered Wireless Sensor Network Testbed,
  P. Spachos, D. Hatzinakos,
  ACM Mobile Computing and Networking (MobiCom ) 2014 - Maui, Hawaii, Sept. 2014.
  ( BibTeX | Abstract | Poster)


• Energy Conserving Opportunistic Routing for Self-Powered Wireless Sensor Networks,
  P. Spachos, D. Hatzinakos,
  IEEE International Conference on Computer Communications (INFOCOM ) 2014, Toronto, Canada, April 2014.
  ( BibTeX | Abstract | Poster) (IEEE INFOCOM 2014 Best Poster Award Runner-up)


• Wireless Multihop Networking for a Scalable Indoor Temperature Monitoring System,
  P. Spachos, L. Song, D. Hatzinakos,
  IEEE Consumer Communications and Networking Conference (CCNC ) 2014, Las Vegas, NV, Jan. 2014.
  ( BibTeX | Abstract | Poster | Video)


• Gas Leak Detection and Localization System Through Wireless Sensor Networks,
  P. Spachos, L. Song, D. Hatzinakos,
  IEEE Consumer Communications and Networking Conference (CCNC ) 2014, Las Vegas, NV, Jan. 2014.
  ( BibTeX | Abstract | Poster | Video)


• Prototypes of Opportunistic Wireless Sensor Networks Supporting Indoor Air Quality Monitoring,
  P. Spachos, L. Song, D. Hatzinakos,
  IEEE Consumer Communications and Networking Conference (CCNC ) 2013, Las Vegas, NV, Jan. 2013.
  ( BibTeX | Abstract | Poster)

Book Chapters

• An Intelligent and Secure Framework for Wireless Information Technology in Healthcare for User and Data Classification in Hospital",
  M. Mohammadian, D. Hatzinakos, P. Spachos , Ric Jetzsch,
  Handbook of Research on Advancing Health Education through Technology, IGI Global.


• Large Scale Cognitive Wireless networks: Architecture and Application,
  L. Song, P. Spachos, D. Hatzinakos,
  Self-Organization and Green Applications in Cognitive Radio Networks, IGI Global, Jan. 2013.
  ( Link)

Theses

• Energy Efficient Routing Protocol Design and Implementation for Self-powered Wireless Sensor Networks,
  Ph.D., Dept. of Electrical and Computer Engineering, University of Toronto, July 2014.


• Opportunistic Routing for Enhanced Source-Location Privacy in Wireless Sensor Networks,
  M.A.Sc., Dept. of Electrical and Computer Engineering, University of Toronto, June 2010.
  


• Semantic Parser for Greek Natural Language Processing and Web Applications,
  Diploma, Dept. of Electronics and Computer Engineering at the Technical University of Crete, July 2008.
  

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Teaching

Instructor

I have been the Instructor for the following courses:

• CSC 207 - Software Design, course site
  Computer Science, St. George Campus, University of Toronto

Teaching Assistant

I have been a Teaching Assistant for the following courses:

• ECE 241 - Digital Systems
  Electrical and Computer Engineering, St. George Campus, University of Toronto
• ECE 244 - Programming Fundamentals
  Electrical and Computer Engineering, St. George Campus, University of Toronto
• ECE 297 - Communication and Design
  Electrical and Computer Engineering, St. George Campus, University of Toronto
• ECE 361 - Computer Networks
  Electrical and Computer Engineering, St. George Campus, University of Toronto
• ECE 462 - Multimedia Systems
  Electrical and Computer Engineering, St. George Campus, University of Toronto
• CSC 207 - Software Design
  Computer Science, St. George Campus, University of Toronto
• CSC 258 - Computer Organization
  Computer Science, St. George Campus, University of Toronto
• CSC 207 - Software Design
  Mathematical and Computational Sciences, Mississauga Campus, University of Toronto
• CSC 258 - Computer Organization
  Mathematical and Computational Sciences, Mississauga Campus, University of Toronto

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Awards

• Best Poster Award Runner-up, IEEE INFOCOM 2014.
  
• IEEE Student Travel Grant, IEEE International Conference on Communications (ICC), Australia, June 2014.
  
• SGS Conference Grant, School of Graduate Studies (SGS) - University of Toronto for IEEE 79th Vehicular Technology Conference (VTC) in Seoul, Korea, May 2014.
  
• Best Teaching Assistant Award, Electrical & Computer Engineering (ECE) - University of Toronto, Fall 2013.
  
• SGS Conference Grant, School of Graduate Studies (SGS) - University of Torontofor IEEE 77th Vehicular Technology Conference (VTC) in Dresden, Germany, June 2013.

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Research Activities

Conference Organization

• IEEE IUCC 2015, 3rd International Workshop on Multimedia Communications and Networking Workshop

• IEEE GLOBECOM 2015, 1st SmartGrid Resilience (SGR) Workshop

• IEEE INFOCOM 2015, 2nd Workshop on Communication and Networking Techniques for Contemporary Video

Projects

Self-Powered Sensor Networks,(ORF-SPSN)

This is a multidisciplinary project under the Ontario Research Fund (ORF), consisting of many University of Toronto faculty members, research associates and industrial partners, from a wide domain of areas, including communications, materials science, nanotechnology, computer science and biochemistry. The project has a five-year plan, with a total budget of over CND$9 million. My technical contributions involves designing the wireless communication architecture, implementing signal processing algorithms for chemical sensing and detection and combining sensor nodes with radio nodes. Also, my role includes providing overall coordination, ensuring that the technical milestones and financial objectives are timely achieved. In particular, I'm working closely in the development and commercialization of the products, in conjunction with the industrial partners AD Telecom, Spain, SIRADEL, France and OMESH Networks, Canada. More information about the project can be found at the website of the project.

                          

BioFace

BioFace is a face authentication system for smart phone devices. The system was developed in collaboration with my friend and colleague Jiexin (Alice) Gao. The idea for the project was to design and implement a biometric based user authentication application for access control, which can run on top of other applications that grant the user access when applicable. The application was developed on Android 2.2 platform and it is also compatible with Android 2.4 platform while it was tested in a number of smart phone devices.

                                 

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Collaborators

I have been privileged to collaborate with the following great people (listed in chronological order of collaboartion).

Dimitrios Hatzinakos , University of Toronto, Canada
Liang Song , University of Shanghai for Science and Technology, P.R. China
Francis M. Bui , University of Saskatchewan, Canada
Jiexin Gao , University of Toronto, Canada
Yves Lostanlen , Siradel, France
Masoud Mohammadian , University of Canberra, Australia
Dimitris Toumpakaris , University of Patras, Greece
Angelos K. Marnerides , Lancaster University, UK
Alberto Leon- Garcia , University of Toronto, Canada

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Contact

Email:	Phone:
petros (at) ece (dot) utoronto (dot) ca	(+1) 416 - 946 - 3398
Office:	Mailing Address:
Room BA 7208, Bahen Center for Information Technology, University of Toronto, 40 St. George Street, Toronto ON M5S 2E4	Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4 Canada

 

News

Sept. 13, 2015
Our paper "Impact of Technical and Content Quality on Overall Experience of OTT video" has been accepted to IEEE CCNC.

Sept. 5, 2015
Our paper "Self-Powered Wireless Sensor Network for Environmental Monitoring" has been accepted to IEEE GLOBECOM - Workshop on Green Standardizations and Industry Issues for ICT and Relevant Technologies .

Sept. 1, 2015
Our paper "Real-Time Indoor Carbon Dioxide Monitoring through Cognitive Wireless Sensor Networks" has been accepted to IEEE Sensors Journal.

Aug. 10, 2015
Our demo paper "Smart Room Monitoring through Wireless Sensor Networks in Software Defined Infrastructures" has been accepted to IEEE CloudNet 2015.

July 9, 2015
I am joining the School of Engineering at the University of Guelph as an Assistant Professor in August 2015.

May 19, 2015
We will organize a workshop on Multimedia Communications and Networking at the upcoming IEEE IUCC 2015, to be held in Liverpool, UK, between October 26 to October 28, 2015. Please consider submitting a paper!

April 6, 2015
We will organize a workshop on SmartGrid Resilience at the upcoming IEEE GLOBECOM 2015, to be held in San Diego between December 6 to December 10, 2015. Please consider submitting a paper!

March 23, 2015
Our book chapter "An Intelligent and Secure Framework for Wireless Information Technology in Healthcare for User and Data Classification in Hospital" has been accepted for publication in the "Handbook of Research on Advancing Health Education through Technology".

March 9, 2015
Our paper "Acceptability and Quality of Experience in Over-the-top Video" has been accepted to IEEE ICC 2015 - Workshop on Quality of Experience-based Management for Future Internet Applications and Services (QoE-FI).

Jan. 10, 2015
Our paper "QoS and Energy-Aware Dynamic Routing in Wireless Multimedia Sensor Networks" has been accepted to IEEE ICC 2015.

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