Contiki - A Lightweight and Flexible Operating System for Tiny Networked Sensors
LCN '04 Proceedings of the 29th Annual IEEE International Conference on Local Computer Networks
Dynamic spectrum access in WLAN channels: empirical model and its stochastic analysis
TAPAS '06 Proceedings of the first international workshop on Technology and policy for accessing spectrum
Channel surfing: defending wireless sensor networks from interference
Proceedings of the 6th international conference on Information processing in sensor networks
Software-based on-line energy estimation for sensor nodes
Proceedings of the 4th workshop on Embedded networked sensors
Minimising the effect of WiFi interference in 802.15.4 wireless sensor networks
International Journal of Sensor Networks
Interference Detection and Mitigation in IEEE 802.15.4 Networks
IPSN '08 Proceedings of the 7th international conference on Information processing in sensor networks
Defending wireless sensor networks from radio interference through channel adaptation
ACM Transactions on Sensor Networks (TOSN)
Energy-efficient link-layer jamming attacks against wireless sensor network MAC protocols
ACM Transactions on Sensor Networks (TOSN)
Cognitive radio: brain-empowered wireless communications
IEEE Journal on Selected Areas in Communications
Decentralized cognitive MAC for opportunistic spectrum access in ad hoc networks: A POMDP framework
IEEE Journal on Selected Areas in Communications
Jamming sensor networks: attack and defense strategies
IEEE Network: The Magazine of Global Internetworking
Markov-optimal sensing policy for user state estimation in mobile devices
Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks
RETRACTED: Impacts of sensor node distributions on coverage in sensor networks
Journal of Parallel and Distributed Computing
Quantifying the channel quality for interference-aware wireless sensor networks
ACM SIGBED Review - Special Issue on the 10th International Workshop on Real-time Networks (RTN 2011)
An iterative algorithm for multi-user inference channel based on subspace projection
International Journal of Wireless and Mobile Computing
Energy consumption monitoring for sensor nodes in SNAP
International Journal of Sensor Networks
Throughput optimisation in sensor network-aided cognitive radio
International Journal of Sensor Networks
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Communications of low-power sensor nodes are easily corrupted by transmissions of collocated devices that inducing packet losses might increase data delay and energy consumption. Dynamic Spectrum Access mechanisms can mitigate these problems. These approaches allow frequency agile sensor nodes to avoid frequency bands experiencing high interference and select channels suitable for their transmissions. In this context, detecting interference and identifying spectrum opportunities in a reliable and efficient manner becomes a task of vital importance. In this paper we propose a new interference detection algorithm accounting both for energy and complexity constraints of sensor motes as well as for the intermittent nature of interference typically experienced by sensor networks in unlicensed bands. We develop an analytical framework that allows to explicitly characterise the performance of our algorithm and also implement it on the TMote Sky sensor platform. Experimental results clearly demonstrate the capabilities of the proposed scheme to identify interfered channels.