3rd International Workshop on Dependable Network Computing and Mobile Systems (DNCMS'10), in Proceedings of the 29th IEEE Symposium on Reliable Distributed Systems (SRDS'10),New Delhi, India, November 2010
Although the technology and applications of wireless
sensor networks have greatly increased over the last
years, ensuring a dependable real-time operation despite faults
and temporal uncertainties is still an on-going research topic.
The problems are particularly significant when considering
that future applications will interact with their environment
not only for supervision or monitoring, but also to directly
control physical (real-time) entities, sometimes with safety-critical
requirements.
We believe that reasoning in terms of data validity might
be a good way to approach the problem. The ability to know
if sensor data flowing in the system is valid - data validity
awareness -, is a first step to achieve a dependable operation.
But more than that, it should be possible to ensure, given
requirements for data validity throughout the operation, a
dependable perception of the environment.
In this paper we essentially discuss the problem, analyzing
some of the issues that need to be addressed to achieve these
goals. Particularly, we introduce fundamental concepts and
relevant definitions, we elaborate on the main impediments to
achieve data validity awareness and describe relevant means to
deal with these impediments. Finally, we address the issue of
ensuring a dependable perception and present some research
ideas in this direction.
@inproceedings{Marques:10b,
author = {Marques, L. and Casimiro, A.},
title = {Data Validity and Dependable Perception in Networked Sensor-Based Systems},
booktitle = {Proceedings of the 29th IEEE Symposium on Reliable Distributed Systems (SRDS'10), 3rd International Workshop on Dependable Network Computing and Mobile Systems (DNCMS'10)},
year = {2010},
month = {Nov},
address = {New Delhi, India},
pages = {358-362},
url = {http://dx.doi.org/10.1109/SRDS.2010.52},
doi = {10.1109/SRDS.2010.52},
isbn = {978-0-7695-4250-8 },
publisher = {IEEE},
abstractURL = {http://www.di.fc.ul.pt/~casim/papers/dncms10/dncms10.html},
documentURL = {http://www.di.fc.ul.pt/~casim/papers/dncms10/dncms10.pdf},
keywords = {sensor arrays;wireless sensor networks;network sensor-based systems;sensor data validity;wireless sensor networks;Middleware;Monitoring;Protocols;Quality of service;Real time systems;Robot sensing systems;Wireless sensor networks;Data validity;Dependability;Real-Time;Sensor networks;Temporal consistency},
}