Flexible power scheduling for sensor networks
Proceedings of the 3rd international symposium on Information processing in sensor networks
A Wakeup Scheme for Sensor Networks: Achieving Balance between Energy Saving and End-to-end Delay
RTAS '04 Proceedings of the 10th IEEE Real-Time and Embedded Technology and Applications Symposium
Towards optimal sleep scheduling in sensor networks for rare-event detection
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Data forwarding in extremely low duty-cycle sensor networks with unreliable communication links
Proceedings of the 5th international conference on Embedded networked sensor systems
Utility-Based Opportunistic Routing in Multi-Hop Wireless Networks
ICDCS '08 Proceedings of the 2008 The 28th International Conference on Distributed Computing Systems
A methodology for extracting temporal properties from sensor network data streams
Proceedings of the 7th international conference on Mobile systems, applications, and services
XD: A Cross-Layer Designed Data Collection Mechanism for Mission-Critical WSNs in Urban Buildings
MDM '09 Proceedings of the 2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware
Opportunistic flooding in low-duty-cycle wireless sensor networks with unreliable links
Proceedings of the 15th annual international conference on Mobile computing and networking
Spatiotemporal Delay Control for Low-Duty-Cycle Sensor Networks
RTSS '09 Proceedings of the 2009 30th IEEE Real-Time Systems Symposium
Bounding Communication Delay in Energy Harvesting Sensor Networks
ICDCS '10 Proceedings of the 2010 IEEE 30th International Conference on Distributed Computing Systems
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In many sensor network applications, sink node needs to actively communicate with other sensor nodes in order to perform event detection operations. For those applications, there is usually a delay-bounded associated with them and require the messages sent to be received within a designated time bound. In energy harvesting sensor networks, limited energy from environment necessitates sensor nodes to operate at a low-duty-cycle. Sensor nodes work active briefly and stay asleep most of time. Such low-duty-cycle operation leads to communication delays in comparison with the always-active networks. In this paper, we address the event detection problems in an energy harvesting sensor network where energy efficiency and data freshness need to be balanced. To solve this problem, we propose a utility-based delay bounded scheme for event detection, MaxOpUtility-based scheme. MaxOpUtility offers the ability to increase reliability through relay nodes selection as well as to ensure the timeliness. In addition, we show how nodes in the network can cooperatively bound end-to-end delay with maximum utility. Extensive simulations are conducted to verify the effectiveness of our approach compared with the optimal one. Meanwhile, we demonstrate that our solution is able to effectively provide delay bounded guarantee in energy harvesting networks.