Dr. Stephan Sigg Technische Universität Braunschweig Institute of Operating Systems and Computer Networks Mühlenpfordtstraße 23, 1st floor 38106 Braunschweig Germany Fax: +49 531/391-5936 EMail: sigg[[at]]ibr.cs.tu-bs.de

From January 2008 to March 2011 I was with the Institute of Operating Systems and Computer Networks in the distributed and ubiquitous systems group. Currently I am with the National Institute of Informatics (NII), in the group of Professor Yusheng Ji. My research interests include context prediction, algorithms for distributed and ubiquitous systems and collaborative transmission in WSNs.

This page is no longer maintained. Please visit my new page for most recent information.

Short CV:

Courses

Lectures

• Secure communication based on noisy input data SS11
• Betriebssysteme WS1011
• Kooperative Übertragungsstrategien in drahtlosen Sensornetzen WS0910, SS10, WS1011
• Algorithmen zur Kontextprognose in ubiquitären Systemen WS0809

Exercises

• Mensch-Maschine Interaktion SS08, SS09
• Angewandte verteilte Systeme SS08, SS09
• Verteilte Systeme WS0809, WS0910
• Betriebssysteme WS0809, WS0910

Practical trainings

• Praktikum Ubiquitous Computing WS0809
• Software Entwicklungs Praktikum (SEP) -- Collaborative transmission in wireless sensor networks SS09
• Teamprojekt Second World - Erstellung einer Visualisierungsumgebung für Sensorknoten WS0809

Seminars

• Seminar Anwendungsbereiche und Charakteristika von Sensornetzen SS08, WS0809, SS09, WS0809
• Seminar Eingebettete Systeme in Theorie und Praxis SS08, WS0809, SS09, WS0809

Projects

ContextAsAKey - Utilisation of context information to ensure privacy between communicating applications.

DFG SPP 1183: Organic computing - Emergent radio

BSI Project MoSe - Modelling of wireless sensor networks. In collaboration with the Institute for Telematics of the Karlsruhe Institute of Technology

Activities:

• Guest editor of the Springer Personal and Ubiquitous Computing Theme Issue Security and trust in context-aware systems
• Reviewer for the Theme Issue on Context Aware Systems of the Journal of Ambient Intelligence and Smart Environments (JAISE)
• Workshop co-organiser of the Workshop on AI Problems and Approaches for Intelligent Environments, August, 27-31st 2012, Montpellier, France
• TPC member of the 9th International Conference on Ubiquitous Intelligence and Computing, September 4-7th, 2012, Fukuoka, Japan
• TPC member of the 6th IEEE International Workshop on Performance Modeling and Evaluation of Computer and Telecommunication Networks (PMECT 2012), July 30th - August 2nd, 2012, Munich, Germany
• TPC member of the 7th Workshop on Artificial Intelligence Techniques for Ambient Intelligence (AITAmI'12), June, 26th-27th, 2012, Guanajuato, Mexico
• Reviewer for the Springer Journal of Ambient Intelligence and Humanized Computing
• TPC member of the 2nd Workshop on Pervasive Urban Applications (PURBA) in conjunction with the 10th International Conference on Pervasive Computing, June 18-22, 2012, Newcastle, UK
• Workshop co-organiser of the 1st Workshop on recent advances in behavior prediction and pro-active pervasive computing, June, 18th 2012, Newcastle, UK
• Workshop co-organiser of the 1st Workshop on Resilient Cyber-physical SystemS, Februrary 28th 2012, Munich, Germany
• TPC member of the Current Issues in IT Security conference (Security12), May, 7-11th 2012, Freiburg, Germany
• TPC member of the 6th International IEEE HeterWMN Workshop on Heterogeneous, Multi-Hop, Wireless and Mobile Networks in conjunction with the IEEE GLOBECOM 2011 conference , December 5-9, 2011, Houston, Texas, USA
• Workshop co-organiser of the 3rd Workshop on Context-Systems Design, Evaluation and Optimisation, December 9th 2011, Copenhagen, Denmark
• TPC member of the IEEE Symposium on Wireless Telecommunications Applications (ISWTA2011), September, 25-28, 2011, Langkawi, Malaysia
• TPC member of the 2011 International Conference on Computer Applications and Industrial Electronics (ICCAIE 2011), December 4-7th, 2011, Penang, Malaysia
• TPC member of the 8th International Conference on Ubiquitous Intelligence and Computing, September 1-4th, 2011, Banff, Canada
• TPC member of the 8th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous 2011), December, 6-9th 2011, Copenhagen, Denmark
• Reviewer for the Elsevier Journal on Decision Support Systems (DSS)
• TPC member of the 5th IEEE International Workshop on Performance Modeling and Evaluation of Computer and Telecommunication Networks (PMECT 2011), August 1-4, 2011, Maui, Hawaii
• Workshop co-organiser of the 2nd Workshop on Context-Systems Design, Evaluation and Optimisation (CoSDEO 2011), February 23rd 2011, Como, Italy
• TPC member of the 1st Workshop on Pervasive Urban Applications (PURBA) in conjunction with the 9th International Conference on Pervasive Computing, June 12-15, 2011, San Francisco, CA, USA
• TPC member of the 4th ACM International Workshop on Context-Awareness for Self-Managing Systems (CASEMANS 2010) in conjunction with Ubicomp 2010, September 26, 2010, Copenhagen, Denmark
• Reviewer for the Elsevier Information Fusion journal 2010
• TPC member of the 6th International Conference on Mobile Ad-hoc and Sensor Networks (MSN 2010), December 20 - 22 2010, Hangzhou, China
• TPC member of the 5th International IEEE HeterWMN Workshop on Heterogeneous, Multi-Hop, Wireless and Mobile Networks in conjunction with the IEEE GLOBECOM 2010 conference , December 6-10, 2010, Miami, Florida, USA
• TPC member of the 4th IEEE International Workshop on Performance Modeling and Evaluation of Computer and Telecommunication Networks (PMECT 2010), August 2-5, 2010, Zurich Switzerland
• Workshop co-organiser of the 1st Workshop on Context-Systems Design, Evaluation and Optimisation (CoSDEO 2010), February 23rd 2010, Hannover, Germany
• TPC member of the 7th International Conference on Ubiquitous Intelligence and Computing (UIC 2010), October 26 - 29 2010, Xi'an, China
• TPC member of the 5th International Conference on Mobile Ad-hoc and Sensor Networks (MSN 2009), December 14 - 16 2009, Wu Yi Mountain, China
• Reviewer for the IEEE Internet Computing magazine, special issue on Internet of Things (ICSI-2009-05), 2009
• Reviewer for the 7th Annual International Conference on Mobile Systems, Applications and Services (MobiSys 2009), June 22 - 25, Krakow, Poland
• Reviewer for the IEEE Communications Letters (CL2006)
• Reviewer for the 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC 2005), September 11 - 14 2005, Berlin, Germany

Publications:

2012

• Stephan Sigg and Dominik Schuermann: Secure communication based on ambient audio, in IEEE Transactions on Mobile Computing (TMC), 2012 (SS12, BibTeX, Accepted for publication)
• Stephan Sigg, Ngu Nguyen, An Huynh and Yusheng Ji: AdhocPairing: Spontaneous audio based secure device pairing for Android mobile devices, in Proceedings of the 4th International Workshop on Security and Privacy in Spontaneous Interaction and Mobile Phone Use, in conjunction with Pervasive 2012, 2012 (SNH12b, BibTeX)
• Stephan Sigg, Dawud Gordon, Georg von Zengen, Michael Beigl, Sandra Haseloff and Klaus David: Investigation of context prediction accuracy for different context abstraction level, in IEEE Transactions on Mobile Computing (TMC), 2012 (SGZB11, DOI, BibTeX)
• Ngu Nguyen, Stephan Sigg, An Huynh and Yusheng Ji: Pattern-based Alignment of Audio Data for Ad-hoc Secure Device Pairing, in Proceedings of the 16th annual International Symposium on Wearable Computers (ISWC), 2012 (NSH12b, BibTeX)
• Ngu Nguyen, Stephan Sigg, An Huynh and Yusheng Ji: Using ambient audio in secure mobile phone communication, in Proceedings of the 10th IEEE International Conference on Pervasive Computing and Communications (PerCom), WiP session, 2012 (NSH12, BibTeX)
• Predrag Jakimovski, Hedda R. Schmidtke, Stephan Sigg, Leonardo Weiss, Ferreira Chaves and Michael Beigl: Collective Communication for Dense Sensing Environments, in Journal of Ambient Intelligence and Smart Environments (JAISE), 2012 (JSS12, BibTeX)

2011

• Markus Scholz, Stephan Sigg, Hedda Schmidtke and Michael Beigl: Challenges for device-free radio-based activity recognition, in Proceedings of the 3rd Workshop on Context Systems Design Evaluation and Optimisation (CoSDEO), 2011 (SSS11b, BibTeX)
• Markus Scholz, Stephan Sigg, Dimana Shihskova, Georg von Zengen, Gerrit Bagshik, Toni Guenther, Michael Beigl and Yusheng Ji: SenseWaves: Radiowaves for context recognition, in Video Proceedings of the 9th International Conference on Pervasive Computing (Pervasive 2011), 2011 (SSS11, BibTeX)
• Stephan Sigg, Dominik Schuermann and Jusheng Ji: PINtext: A framework for secure communication based on context, in Proceedings of the 8th International ICST Conference on Mobile and Ubiquitous Systems (MobiQuitous 2011), 2011 (SSJ11, BibTeX)
• Johannes Starosta, Markus Reschke, Sebastian Schwarzl, Stephan Sigg and Michael Beigl: Context awareness through the RF-channel, in 2nd workshop for Context Systems Design and Evaluation (CoSDEO) in conjunction with 5th Conference on Architecture for Computing Systems (ARCS), 2011 (SRS11, BibTeX)
• Stephan Sigg, Rayan Merched El Masri and Michael Beigl: Feedback based closed-loop carrier synchronisation: A sharp asymptotic bound, an asymptotically optimal approach, simulations and experiments, in IEEE Transactions on Mobile Computing (TMC), 2011 (SMB11, DOI, BibTeX)
• Stephan Sigg, Predrag Jakimovski, Florian Becker, Hedda Schmidtke, Martin Alexander Neumann, Yusheng Ji and Michael Beigl: Neuron-inspired collaborative transmission in wireless sensor networks, in Proceedings of the 8th International ICST Conference on Mobile and Ubiquitous Systems (MobiQuitous 2011), 2011 (SJB11, BibTeX)
• Stephan Sigg: Context-based security: State of the art, open research topics and a case study, in Proceedings of the 5th ACM International Workshop on Context-Awareness for Self-Managing Systems (CASEMANS 2011), 2011 (SIG11, BibTeX)
• Stephan Sigg, Matthias Budde, Yusheng Ji and Michael Beigl: Entropy of audio fingerprints for unobtrusive device authentication, in Poster Proceedings of the 7th International and Interdisciplinary Conference on Modeling and Using Context (Context2011), 2011 (SBJ11, BibTeX)
• Stephan Sigg, Michael Beigl and Behnam Banitalebi: Organic Computing - A Paradigm Shift for Complex Systems, Christian Mueller-Schloer and Hartmut Schmeck and and Theo Ungerer, Springer, 2011 (SBB11, BibTeX)
• Stephan Sigg and Michael Beigl: An adaptive protocol for distributed beamforming, in 17. Fachtagung 'Kommunikation in Verteilten Systemen 2011' (KiVS11), 2011 (SB11a, BibTeX)
• Markus Reschke, Johannes Starosta, Sebastian Schwarzl and Stephan Sigg: Situation awareness based on channel measurements, in 4th conference on context awareness for proactive systems (CAPS), 2011 (RSS11, BibTeX)
• Predrag Jakimovski, Florian Becker, Stephan Sigg, Hedda R. Schmidtke and Michael Beigl: Collective Communication for Dense Sensing Environments, in 7th IEEE International Conference on Intelligent Environments (IE), 2011 (JBS11, BibTeX, (**Best paper**))
• Dawud Gordon, Stephan Sigg and Michael Beigl: Using Prediction to Conserve Energy in Recognition on Mobile Devices, in 9th IEEE International Conference on Pervasive Computing and Communications (PerCom), WiP session, 2011 (GSB11, BibTeX)
• Behnam Banitalebi, Stephan Sigg, Dawud Gordon, Takashi Miyaki and Michael Beigl: Receive Collaboration in Wireless Sensor Networks; Analyzing and Performance Evaluation, in Proceedings of the 8th IEEE International Conference on Mobile Ad-hoc and Sensor Systems (IEEE MASS 2011), 2011 (BSG11, BibTeX)

2010

• Stephan Sigg: Optimisation of a three stage cooling process, Masterarbeit, FernUniversitaet in Hagen, 2010 (Sigg10, BibTeX)
• Stephan Sigg, Sandra Haseloff and Klaus David: An Alignment Approach for Context Prediction Tasks in UbiComp environments, in IEEE Pervasive Computing (Oct-Dec 2010), Vol. 9, No. 4, Los Alamitos, CA, USA, IEEE Computer Society, 2010 (SDH10, DOI, BibTeX)
• Stephan Sigg and Michael Beigl: Distributed adaptive expectation aware in-network context processing, in Fourth ACM International Workshop on Context-Awareness for Self-Managing Systems, 2010 (SB10a, BibTeX)
• Rayan Merched El Masri, Stephan Sigg and Michael Beigl: An asymptotically optimal approach to distributed adaptive transmit beamforming in wireless sensor networks, in Proceedings of the 16th European Wireless Conference, 2010 (MSB10, BibTeX)
• Niklas Klein, Stephan Sigg, Klaus David and Michael Beigl: DAG Based Context Reasoning: Optimised DAG Creation, in Proceedings of the first Workshop on Context-Systems Design, Evaluation and Optimisation, 2010 (KSDB10, BibTeX)
• Behnam Banitalebi, Stephan Sigg and Michael Beigl: Performance analysis of receive collaboration in TDMA-based Wireless Sensor Networks, in Proceedings of the fourth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies (Ubicomm), 2010 (BSB10b, BibTeX)
• Behnam Banitalebi, Stephan Sigg and Michael Beigl: On the Feasibility of Receive Collaboration in Wireless Sensor Networks, in Proceedings of the 21st annual IEEE Symposium on Personal, Indoor and Mobile Radio Communications, 2010 (BSB10a, BibTeX)

2009

• Stephan Sigg, Rayan Merched El Masri and Julian Ristau Michael Beigl: Limitations, performance and instrumentation of closed-loop feedback based distributed adaptive transmit beamforming in WSNs, in Fifth International Conference on Intelligent Sensors, Sensor Networks and Information Processing - Symposium on Adaptive Sensing, Control, and Optimization in Sensor Networks, 2009 (SBMR09, BibTeX)
• Stephan Sigg and Michael Beigl: Algorithmic approaches to distributed adaptive transmit beamforming, in Fifth International Conference on Intelligent Sensors, Sensor Networks and Information Processing - Symposium on Theoretical and Practical Aspects of Large-scale Wireless Sensor Networks, 2009 (SB09b, BibTeX)
• Stephan Sigg and Michael Beigl: Algrithms for closed-loop feedback based distributed adaptive beamforming in wireless sensor networks, in Fifth International Conference on Intelligent Sensors, Sensor Networks and Information Processing - Symposium on Adaptive Sensing, Control, and Optimization in Sensor Networks, 2009 (SB09a, BibTeX)

2008

• Stephan Sigg: Ein Vergleich von Varianten endlicher Quantenautomaten - Eine algorithmenorientierte Analyse, VDM Verlag, 2008 (Sig08b, BibTeX)
• Stephan Sigg: Development of a novel context prediction algorithm and analysis of context prediction schemes, University of Kassel, Chair for Communication Technology, ComTec, 2008 (Sig08a, BibTeX)
• Stephan Sigg, Daniel Ruehr, Monty Beuster and Michael Beigl: Audio Fingerprinting in UbiComp Environments - Performance Measurements and Applications, in Proceedings of the fifth International Conference on Networked Sensing Systems (INSS'08), 2008 (SRB08, BibTeX)
• Stephan Sigg, Monty Beuster, Daniel Roehr and Michael Beigl: Search Space Size and Context Prediction, in Proceedings of the fifth International Conference on Networked Sensing Systems (INSS'08), 2008 (SBR08, BibTeX)
• Stephan Sigg and Michael Beigl: Randomised Collaborative Transmission of Smart Objects, in 2nd International Workshop on Design and Integration Principles for Smart Objects (DIPSO2008) in conjunction with Ubicomp 2008, 2008 (SB08b, BibTeX)
• Stephan Sigg and Michael Beigl: Collaborative Transmission in Wireless Sensor Networks by a (1+1)-EA, in Proceedings of the 8th International Workshop on Applications and Services in Wireless Networks (ASWN'08), 2008 (SB08a, BibTeX)
• Daniel Ruehr, Michael Beigl, Monty Beuster, Stephan Sigg, Christian Decker, Till Riedel and Martin Berchtold: Developing a Virtual Environment for better Sensory Perception, in Fifth International Conference on Networked Sensing Systems. June 17 - 19, 2008, Kanazawa, Japan, 2008 (Roehr2008, BibTeX)

2007

• Stephan Sigg, Sian Lun Lau, Sandra Haseloff and Klaus David: Approaching a Definition of Context Prediction, in Proceedings of the Third Workshop on Context Awareness for Proactive Systems (CAPS'07), 2007 (SLH+07, BibTeX)
• Stephan Sigg, Sandra Haseloff and Klaus David: A Study on Context Prediction and Adaptivity, in Proceedings of the International Workshop on Context Modeling and Management for Smart Environments (CMMSE'07), 2007 (SHD07c, DOI, BibTeX)
• Stephan Sigg, Sandra Haseloff and Klaus David: Prediction of Context Time Series, in Proceedings of the 5th Workshop on Applications of Wireless Communications (WAWC'07), J. Ikonen and M. Juutilainen and J. Porras, pages 31-45, 2007 (SHD07b, BibTeX)
• Stephan Sigg, Sandra Haseloff and Klaus David: Minimising the Context Prediction Error, in Proceedings of IEEE 65th Vehicular Technology Conference VTC2007-Spring (VTC-2007 Spring), 2007 (SHD07a, DOI, BibTeX)

2006

• Stephan Sigg, Tino Loeffler, Sandra Haseloff and Klaus David: A Flexible Architecture For Context Aware Applications, in Workshop: Selbstorganisierende, adaptive und kontextsensitive Systeme (SAKS), 2006 (SLH+06, BibTeX)
• Stephan Sigg, Sandra Haseloff and Klaus David: A novel approach to context prediction in ubicomp environments, in Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2006), 2006 (SHD06c, BibTeX)
• Stephan Sigg, Sandra Haseloff and Klaus David: The Impact of the Context Interpretation Error on the Context Prediction Accuracy, in Proceedings of the 3rd Annual International Conference on Mobile and Ubiquitous Systems: Networks and Services (MOBIQUITOUS 2006), 2006 (SHD06b, BibTeX)
• Stephan Sigg, Sandra Haseloff and Klaus David: Context Prediction by Alignment Methods, in Poster Proceedings of the 4th International Conference on Mobile Systems, Applications, and Services (MobiSys 2006), 2006 (SHD06a, BibTeX)
• Stephan Sigg and Klaus David: Optimum Resource Allocation in HSDPA, in Proceedings of the 12th European Wireless Conference: Enabling Technologies for Wireless Multimedia Communications (EW 2006), 2006 (SD06, BibTeX)
• Tino Loeffler, Stephan Sigg, Sandra Haseloff and Klaus David: The Quick Step to Foxtrot, in Proceedings of the Second Workshop on Context Awareness for Proactive Systems (CAPS 2006), Klaus David and Olaf Droegehorn and Sandra Haseloff, Kassel University press, 2006 (LSH+06, BibTeX)

2004

• Stephan Sigg: Ein Vergleich verschiedener Varianten endlicher Quanten-Automaten, Masterarbeit, University of Dortmund, 2004 (Sigg04, BibTeX)