Rafael Aguilar (ISISE Research Group, University of Minho, Portugal)
Dynamic Structural Identification using Wireless Sensor Networks
This work has been partially developed under the collaboration between CISTER-ISEP and ISISE-UMINHO. Within this context, CISTER has designed a WSN platform for real-time vibration acquisition, including a custom-designed signal acquisition board and the WSN communication protocol (open-ZB implementation of the IEEE 802.15.4 protocol). Building upon this WSN platform, ISISE has designed innovative data processing (operational modal analysis) schemes and performed extensive laboratory and field tests, enabling the validation of this approach against traditional wired-based measurement systems. Further details on this research framework can be found at http://www.cister.isep.ipp.pt/activities/MSM/

Petr Jurcik
Real-Time Communications over Cluster-Tree Wireless Sensor Networks
PhD Thesis in Electrical Engineering and Information Technology, Faculty of Electrical Engineering of the Czech Technical University in Prague (Czech Republic) in collaboration with the CISTER Research Unit, Polytechnic Institute of Porto (ISEP-IPP, Portugal), October 2010.

Maissa Ben Jamaa
An Experimental Study for the Performance Evaluation and Optimization of Link Quality Estimators in Wireless Sensor Networks
MSc Thesis in Information Systems and New Technologies, University of Sfax, Tunisia, July 2010. Work carried out in collaboration with the CISTER-ISEP Research Unit, Polytechnic Institute of Porto (ISEP/IPP), Portugal.

Denis Ros�rio
Benchmarking Testbed for the Performance Evaluation of Link-Quality Estimators in Wireless Sensor Network
Master thesis in Automation and Systems Engineering, Universidade Federal de Santa Catarina (UFCS), Brazil, April 2010. Work carried out in collaboration with the CISTER-ISEP Research Unit, Polytechnic Institute of Porto (Portugal).

Manish Batsa
Supporting Different QoS Levels in Multiple-Cluster Wireless Sensor Networks
MSc Thesis in Computer Science and Engineering, Department of Electronics and Computer Engineering, Indian Institute of Technology (IIT) Roorkee, September 2009 (defended January 2010). Work carried out at the CISTER-ISEP Research Unit, Polytechnic Institute of Porto (Portugal).

Ricardo Severino
On the use of IEEE 802.15.4/ZigBee for Time-Sensitive Wireless Sensor Network Applications
MSc Thesis, Polytechnic Institute of Porto, School of Engineering, October 2008. BEST EWSN/CONET MSc THESIS AWARD, 2009. http://www.cooperating-objects.eu/events/ewsn-2009-awards/

Andre Cunha
On the use of IEEE 802.15.4/ZigBee as federating communication protocols for Wireless Sensor Networks
MSc Thesis, University of Porto, Faculty of Engineering, September 2007. Work carried out at the CISTER-ISEP Research Unit, Polytechnic Institute of Porto (Portugal).

Skender Ben Attia
Fault-Tolerance Mechanisms for Zigbee Wireless Sensor Networks
MSc Thesis, SupCom, Tunis, Tunisia, HURRAY-TR-070710, July 2007. Work carried out at the CISTER-ISEP Research Unit, Polytechnic Institute of Porto (Portugal).

Anneleen Van Nieuwenhuyse
On the use of the ZigBee protocol for Wireless Sensor Networks
MSc Thesis, Kaho Sint�Lieven University, Gent, Belgium, HURRAY-TR-060603, June 2006. Work carried out at the CISTER-ISEP Research Unit, Polytechnic Institute of Porto (Portugal).

Melek Attia
Collision-Free Beacon Scheduling Mechanisms for IEEE 802.15.4/Zigbee Cluster-Tree Wireless Sensor Networks
MSc Thesis, SupCom, Tunis, Tunisia, HURRAY-TR-060604, June 2006. Work carried out at the CISTER-ISEP Research Unit, Polytechnic Institute of Porto (Portugal).

M�rio Alves
Quality of Service in Wireless Sensor Networks: towards the eQualiSer�
Seminar at the First International School on Cyber-Physical and Sensor Networks - SensorNets 2009 (http://www.sensornets-school.org/), Monastir, Tunisia, December 17-21, 2009.

Anis Koub�a
Engineering IEEE 802.15.4/ZigBee Wireless Sensor Networks
Seminar at the First International School on Cyber-Physical and Sensor Networks - SensorNets 2009 (http://www.sensornets-school.org/), Monastir, Tunisia, December 17-21, 2009.

M�rio Alves
The wireless sensor networks standards and COTS landscape: can we get QoS and �calm technology�?
Tutorial at the 6th European Conference on Wireless Sensor Networks (EWSN'09), February 11th, Cork, Ireland. Summary and author bio at: http://www.ewsn.org/tutorial.html

M�rio Alves
Enabling ubiquitous computing and cyber-physical systems with wireless sensor/actuator networks: what is at stake?
Seminar in the GII doctoral school for PhD students in Computer Science (http://gii2008.dei.polimi.it/), in L'Aquila, Italy, 4/SEP/2008.

M�rio Alves
Guaranteeing QoS in large-scale distributed embedded systems using standard and COTS technologies: ongoing research at IPP-HURRAY
Seminar in the GII doctoral school for PhD students in Computer Science (http://gii2008.dei.polimi.it/), in L'Aquila, Italy, 4/SEP/2008.

H. Fotouhi, M. Alves, A. Koub�a , M. Zuniga
smart-HOP: a reliable handoff procedure for supporting mobility in wireless sensor networks
Poster Session of the 8th European Conference on Wireless Sensor Networks (EWSN 2011), Bonn, Germany, 23-25 February 2011.

HURRAY-TR-060601
Anis Koubaa, Mario Alves, Eduardo Tovar
A Comprehensive Simulation Study of Slotted CSMA/CA for IEEE 802.15.4 Wireless Sensor Networks
5th IEEE International Workshop on Factory Communication Systems (WFCS06), Torino, Italy, JUN/2006, pp. 183-192.

HURRAY-TR-050702
Anis Koubaa, Mario Alves, Eduardo Tovar
IEEE 802.15.4 for Wireless Sensor Networks: A Technical Overview

Petr Jurcik, Anis Koubaa, Mario Alves, Eduardo Tovar, Zdenek Hanzalek
A Simulation Model for the IEEE 802.15.4 Protocol: Delay/Throughput Evaluation of the GTS Mechanism
15th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems (MASCOTS�07), Istanbul, Turkey, October 2007, pp. 109-116.

HURRAY-TR-060404
Anis Koubaa, Mario Alves, Eduardo Tovar
GTS Allocation Analysis in IEEE 802.15.4 for Real-Time Wireless Sensor Networks
14th International Workshop on Parallel and Distributed Real-Time Systems (WPDRTS�06), special track on Wireless Sensor Networks, Rhodes Island, Greece

P. Jurcik, R. Severino, A. Koubaa, M. Alves, E. Tovar
Dimensioning and Worst-case Analysis of Cluster-Tree Sensor Networks
ACM Transactions on Sensor Networks, Volume 7, Issue 2, Article 14, August 2010.

Petr Jurcik, Zdenek Hanzalek
Simulation study of energy efficient scheduling for IEEE 802.15.4/ZigBee cluster-tree Wireless Sensor Networks with time-bounded data flows
Published in the15th IEEE Int. Conf. on Emerging Technologies and Factory Automation (ETFA 2010), Bilbao, Spain, 13-16/SEP/2010

Petr Jurč�k, Ricardo Severino, Anis Koub�a, M�rio Alves, Eduardo Tovar
Real-Time Communications over Cluster-Tree Sensor Networks with Mobile Sink Behaviour
14th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2008), Kaohsiung, Taiwan, 25-27/AUG/2008.

Petr Jurč�k, Ricardo Severino, Anis Koub�a, M�rio Alves, Eduardo Tovar
Worst-case Dimensioning of Cluster-Tree Sensor Networks with Mobile Sink Behaviour
IPP-HURRAY Technical Report, HURRAY-TR-080401, May 2008

HURRAY-TR-061004
Anis Koubaa, Mario Alves, Eduardo Tovar
Modelling and Worst-Case Dimensioning of Cluster-Tree Wireless Sensor Networks
27th IEEE Real-time Systems Symposium (RTSS�06), Rio de Janeiro, Brazil, 5-8/DEC/2006.

Jan-Hinrich Hauer, Roberta Daidone, Ricardo Severino, Jasper B�sch, Marco Tiloca, Stefano Tennina
An Open-Source IEEE 802.15.4 MAC Implementation for TinyOS 2.1
Poster Session of the 8th European Conference on Wireless Sensor Networks (EWSN 2011), Bonn, Germany, 23-25 February 2011.

Petr Jurcik, Anis Koubaa
The IEEE 802.15.4 OPNET Simulation Model: Reference Guide v2.0
IPP-HURRAY Technical Report, HURRAY-TR-070509, May 2007

Andre CUNHA, Mario ALVES, Anis KOUBAA
Implementation of the ZigBee Network Layer with Cluster-tree Support
IPP-HURRAY Technical Report, HURRAY-TR-070510, May 2007

Andre Cunha, Mario Alves, Anis Koubaa
Implementation Details of the Time Division Frame Scheduling Approach for Zigbee Cluster-Tree Networks
IPP-HURRAY Technical Report, HURRAY-TR-070102, Jan 2007

Andre Cunha, Mario Alves, Anis Koubaa
An IEEE 802.15.4 protocol implementation(in nesC/TinyOS): Reference Guide v1.2
IPP-HURRAY Technical Report, HURRAY-TR-061106, May 2007