2013 World Congress on Computer and Information Technology (WCCIT), 2013
ABSTRACT Safety critical applications, such as explosion prediction, require continuous and relia... more ABSTRACT Safety critical applications, such as explosion prediction, require continuous and reliable operation of Wireless sensor networks (WSNs). However, validating that a WSN system will function correctly at run time is a hard problem. This is due to the numerous faults one may encounter in the resource-constrained nature of sensor platforms together with the unreliability of the wireless links networks. A holistic fault tolerance approach that addresses all fault issues does not exist. Existing fault tolerance work most likely misses some potential causes of system failures. In this paper, we propose an integrated fault tolerance framework (IFTF) that reduces the false negative by combining a network diagnosis service (component/element level monitoring) with an application testing service (system level monitoring). Thanks to these two complementary services, the maintenance operations will be more efficient leading to a more dependable WSN. From the design view, IFTF offers to the application many tunable parameters that make it suitable for various application needs. Simulation results show that the IFTF reduces the false negative rate of application level failures to 60% with an increase of 4% in power consumption (communication overhead) compared to using solely network diagnosis solutions.
Safety critical applications, such as fire detection or burglar alarm systems, require continuous... more Safety critical applications, such as fire detection or burglar alarm systems, require continuous and reliable operation of Wireless sensor networks (WSNs). However, validating that a WSN system will function correctly at run time is a hard problem. This is due to the numerous faults one may encounter in the resource-constrained nature of sensor platforms together with the unreliability of the
Abstract The dynamics and mobility of nanorods flowing through pores or near surfaces is a subjec... more Abstract The dynamics and mobility of nanorods flowing through pores or near surfaces is a subject of fundamental importance for physical and biological studies. This theme has also promising new applications in the context of nanotechnology, biophysics and medicine ...
AbstractExtending the lifetime of wireless sensor networks remains the most challenging and dema... more AbstractExtending the lifetime of wireless sensor networks remains the most challenging and demand-ing requirement that impedes large-scale deploy-ments. The basic operation in WSNs is the systematic gathering and transmission of sensed data to a base station for further ...
Résumé : Knowledge discovery and data analysis in resource constrained wireless sensor networks f... more Résumé : Knowledge discovery and data analysis in resource constrained wireless sensor networks faces different challenges. One of the main challenges is to identify misbehaviors or anomalies with high accuracy while minimizing energy consumption in the network. In this paper, we ...
2013 World Congress on Computer and Information Technology (WCCIT), 2013
ABSTRACT Safety critical applications, such as explosion prediction, require continuous and relia... more ABSTRACT Safety critical applications, such as explosion prediction, require continuous and reliable operation of Wireless sensor networks (WSNs). However, validating that a WSN system will function correctly at run time is a hard problem. This is due to the numerous faults one may encounter in the resource-constrained nature of sensor platforms together with the unreliability of the wireless links networks. A holistic fault tolerance approach that addresses all fault issues does not exist. Existing fault tolerance work most likely misses some potential causes of system failures. In this paper, we propose an integrated fault tolerance framework (IFTF) that reduces the false negative by combining a network diagnosis service (component/element level monitoring) with an application testing service (system level monitoring). Thanks to these two complementary services, the maintenance operations will be more efficient leading to a more dependable WSN. From the design view, IFTF offers to the application many tunable parameters that make it suitable for various application needs. Simulation results show that the IFTF reduces the false negative rate of application level failures to 60% with an increase of 4% in power consumption (communication overhead) compared to using solely network diagnosis solutions.
Safety critical applications, such as fire detection or burglar alarm systems, require continuous... more Safety critical applications, such as fire detection or burglar alarm systems, require continuous and reliable operation of Wireless sensor networks (WSNs). However, validating that a WSN system will function correctly at run time is a hard problem. This is due to the numerous faults one may encounter in the resource-constrained nature of sensor platforms together with the unreliability of the
Abstract The dynamics and mobility of nanorods flowing through pores or near surfaces is a subjec... more Abstract The dynamics and mobility of nanorods flowing through pores or near surfaces is a subject of fundamental importance for physical and biological studies. This theme has also promising new applications in the context of nanotechnology, biophysics and medicine ...
AbstractExtending the lifetime of wireless sensor networks remains the most challenging and dema... more AbstractExtending the lifetime of wireless sensor networks remains the most challenging and demand-ing requirement that impedes large-scale deploy-ments. The basic operation in WSNs is the systematic gathering and transmission of sensed data to a base station for further ...
Résumé : Knowledge discovery and data analysis in resource constrained wireless sensor networks f... more Résumé : Knowledge discovery and data analysis in resource constrained wireless sensor networks faces different challenges. One of the main challenges is to identify misbehaviors or anomalies with high accuracy while minimizing energy consumption in the network. In this paper, we ...
Uploads
Papers by abbas HIJAZI