Using proximity and quantized RSS for sensor localization in wireless networks
WSNA '03 Proceedings of the 2nd ACM international conference on Wireless sensor networks and applications
Proceedings of the 11th workshop on ACM SIGOPS European workshop
Sluice: Secure Dissemination of Code Updates in Sensor Networks
ICDCS '06 Proceedings of the 26th IEEE International Conference on Distributed Computing Systems
Energy-efficient on-demand reprogramming of large-scale sensor networks
ACM Transactions on Sensor Networks (TOSN)
Seluge: Secure and DoS-Resistant Code Dissemination in Wireless Sensor Networks
IPSN '08 Proceedings of the 7th international conference on Information processing in sensor networks
FlexCup: a flexible and efficient code update mechanism for sensor networks
EWSN'06 Proceedings of the Third European conference on Wireless Sensor Networks
Channel estimation for OFDM with fast fading channels by modified Kalman filter
IEEE Transactions on Consumer Electronics
Structural information-based image quality assessment using LU factorization
IEEE Transactions on Consumer Electronics
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In this paper, we propose an Efficient Code Dissemination (ECoDi) mechanism providing fast dissemination through multiple starting points for building automation and industrial control networks composed of many sensor nodes. Code dissemination is in the spotlight as an important research issue since sensor nodes are necessary for updating new software remotely or fixing bugs dynamically. In particular, the time factor for code dissemination is the most important factor in order that the normal operation of nodes can be continuously performed as soon as finishing the dissemination is completed. For this factor, ECoDi determines the set of disseminators through regression analysis based on the size of distributed code and the time of past unicasts and broadcasts. Then it transmits the entire code as a unicast to multiple disseminators, and the disseminators broadcast the code to the remaining neighbor nodes immediately on receiving the first page. Performance results on our testbed show that ECoDi reduces the time of code dissemination significantly compared to a conventional code dissemination scheme. In commercial systems, it can support steady network operation with a shortened software upgrade time.