DEEDS

Dr. Brahim Ayari

PostDoc - Research Assistant

Dr. Ing. Brahim Ayari,
TU Darmstadt,
Room: S2|02 E207,
Hochschulstr. 10,
64289 Darmstadt
GERMANY

About Me

I was born on the 22nd of June 1977 in Tunis, Tunisia. I received my Diploma degree in June 2004 from the Technical University of Kaiserslautern, where I studied Computer Science (major field of study) and Electrical engineering (minor field of study). I have performed my master thesis titled "Anforderungsanalyse, Entwurf und Implementierung eines web-basierten Entscheidungsunterstützungs-systems für SE Improvement Management" at the Fraunhofer Institut für Experimentelles Software Engineering (IESE) in Kaiserslautern. On October 1st, 2004 I started my PhD research at the DEEDS group, at the Technische Universität Darmstadt, under the supervision of Prof. Neeraj Suri. I successfully graduated and defended my PhD thesis titled "Perturbation-Resilient Atomic Commit Protocols for Mobile Environments" in September 2010.

Publications

PEER-REVIEWED CONFERENCES/WORKSHOPS

Brahim Ayari, Abdelmajid Khelil and Neeraj Suri "ParTAC: A Partition-Tolerant Atomic Commit Protocol for MANETs", In: Proceedings of the 11th International Conference on Mobile Data Management (MDM), 23 - 26 May 2010, pp. 135-144, Kansas City, Missouri, USA.
Faisal Karim Shaikh, Abdelmajid Khelil, Brahim Ayari, Piotr Szczytowski and Neeraj Suri "Generic Information Transport for Wireless Sensor Networks", In: Proceedings of the third IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing (SUTC), June 2010 (to appear)
Brahim Ayari, Abdelmajid Khelil, Neeraj Suri and Eugen Bleim. "Implementation and Evaluation of Delay-Aware and Fault-Tolerant Mobile Transactions". In: Proceedings of the 2nd International Conference on E-Medical Systems (E-Medisys'08), October 2008, Sfax, Tunisia.
Brahim Ayari, Abdelmajid Khelil and Neeraj Suri. "Delay-Aware Mobile Transactions", In: Proceedings of the 6th IFIP Workshop on Software Technologies for Future Embedded & Ubiquitous Systems (SEUS), 1 - 3 October 2008, pp. 280-291, Capri Island, Italy.
Abdelmajid Khelil, Faisal Karim Shaikh, Brahim Ayari and Neeraj Suri. "MWM: A Map-based World Model for Event-driven Wireless Sensor Networks". In: Proceedings of the 2nd ACM International Conference on Autonomic Computing and Communication Systems (AUTONOMICS), 23 - 25 September 2008, Turin, Italy.
Brahim Ayari, Abdelmajid Khelil and Neeraj Suri. "FT-PPTC: An Efficient and Fault-Tolerant Commit Protocol for Mobile Environments". In: Proceedings of the 25th IEEE Symposium on Reliable Distributed Systems (SRDS), 2 - 4 October 2006, pp. 96-105, Leeds, United Kingdem.
Weibelzahl, S., Jedlitschka, A., and Ayari, B. "Eliciting Requirements for a Adaptive Decision Support System through Structured User Interviews". In: Proceedings of the 5th Workshop on User-Centred Design and Evaluation of Adaptive Systems (UDEAS), 20 - 23 June 2006, pp. 470-478, Dublin, Ireland.
Jedlitschka, A., Ayari, B. and Weibelzahl, S. "Is it worthwhile to model users of a tool in support of SE technology selection". In: Proceedings of the workshop week Lernen - Wissensentdeckung - Adaptivität (LWA), 4 - 6 October 2004, pp. 36-41, Humboldt University, Berlin.

JOURNALS

Brahim Ayari, Abdelmajid Khelil and Neearj Suri. "On the Design of Perturbation-Resilient Atomic Commit Protocols for Mobile Transactions". In: ACM Transactions on Computer Systems (ACM ToCS), vol. 29, no. 3, pp. 7:1-7:36, ACM, New York, August, 2011.
Brahim Ayari, Abdelmajid Khelil and Neearj Suri. "Exploring Delay-Aware Transactions in Heterogenous Mobile Environments". In: Journal of Software - Special Issue: Selected Papers of The 6th IFIP Workshop on Software Technologies for Future Embedded and Ubiquitous Systems, vol. 4, no. 7, pp. 634-643, Academy Publisher, Finland, September, 2009.

BOOKS & BOOK CHAPTERS

Brahim Ayari, "Perturbation-Resilient Atomic Commit Protocols for Mobile Environments: Design, Development and Evaluation of Perturbation-Resilient Atomic Commit Protocols for Distributed Mobile Database Transactions", Suedwestdeutscher Verlag fuer Hochschulschriften, Saarbrücken, ISBN 978-3-8381-2226-7, November 2010. [www.amazon.de], [www.amazon.com], [www.amazon.co.uk]
Abdelmajid Khelil, Christian Reinl, Brahim Ayari, Faisal Karim Shaikh, Piotr Szczytowski, Azad Ali and Neeraj Suri, "Sensor Cooperation for a Sustainable Quality of Information", Book chapter in "Pervasive Computing and Networking" (Mohammad S. Obaidat, Mieso Denko, Isaac Woungang (Eds.)), ISBN: 978-0-470-74772-8, John Wiley & Sons, June 2011.
Abdelmajid Khelil, Faisal Karim Shaikh, Piotr Szczytowski, Brahim Ayari and Neeraj Suri, "Map-based Design for Autonomic Wireless Sensor Networks" in (Vasilakos, A.; Parashar, M.; Karnouskos, S.; Pedrycz, W. (Eds.)) "Autonomic Communication", ISBN: 978-0-387-09752-7, Springer-Verlag, Berlin/Heidelberg/New York, June 2009.

DEMOS

Brahim Ayari, Abdelmajid Khelil, Kamel Saffar and Neeraj Suri "Data-based Agreement for Inter-Vehicle Coordination", In: Proceedings of the 11th International Conference on Mobile Data Management (MDM), Demo Track, 23 - 26 May 2010, pp. 279-280, Kansas City, Missouri, USA.

TALKS

Brahim Ayari, Abdelmajid Khelil and Neeraj Suri "ParTAC: A Partition-Tolerant Atomic Commit Protocol for MANETs", Kansas City, Missouri, USA, 11th International Conference on Mobile Data Management (MDM), May 2010.

TECHNICAL REPORTS

Brahim Ayari, Abdelmajid Khelil and Neeraj Suri "GMTC: A Generalized Commit Approach for Hybrid Mobile Environments", TR-TUD-DEEDS-03-01-2011.

Honors and Awards

10/1997 – 03/2004: Scholarship granted by Tunisian Government/DAAD for pursuing studies in Germany.
9/1996 – 9/1997: Scholarship granted by DAAD for pursuing German language course.

Research Interests

Distributed Database Systems
Mobile Database Systems
Dependability and Security in Mobile Networks
Distributed Transaction Protocols
Transaction Management in Mobile Networks

Teaching

I am involved in several themed courses offered by the DEEDS group.

Regular courses:

I am involved in teaching the following classes:

Software/OS Fault-Tolerance (2007-2009)
Introduction to Trusted Systems (2005-2008)
Operating Systems (2006, 2007, 2009)
Trustworthy Operating Systems (2005)
Introduction to Computer Science 2 (2005, 2006, 2008)

Seminars:

Embedded Mobile Systems
Mobile Embedded Systems
Secure/Trusted Operating Systems
Secure and Reliable OS
Software Testing
Robust Software Systems
Dependable Embedded Systems
System Dependability and Security
Robust Software Design

I have also supervised Bachelor's and Master's theses.

Supervised master theses:

Implementation and Evaluation of a Fault-tolerant Commit Protocol for Mobile Environments

Supervised bachelor theses:

Implementing a Transaction Commit Protocol for Mobile Ad-Hoc Networks
Recovery in Mobile Systems

Projects

Short Biography

September 2010 - present: Postdoc in DEEDS group, Technische Universität Darmstadt

1st September 2010: Promotion (“summa cum laude”)
October 2004 - August 2010: Ph.D. Assistent in DEEDS group, Technische Universität Darmstadt, research on dependable distributed protocols in mobile networks
October 1999 - June 2004: Diplom in Computer Science, Technische Universität Kaiserslautern, Germany
October 1997- September 1999: Vordiplom in Computer Science, Technische Universität Kaiserslautern, Germany
September 1996 - September 1997: German Language Course, Studienkolleg, Ruprecht-Karls-Universität Heidelberg, Germany
September 1989 - June 1996: High School, “Lycée Secondaire du Bardo”, Tunis, Tunisia
September 1983 - June 1989: Primary School, “École Primaire Khaznadar Denden”, Tunis, Tunisia