Data networks (2nd ed.)
Making transmission schedules immune to topology changes in multi-hop packet radio networks
IEEE/ACM Transactions on Networking (TON)
An adaptive energy-efficient MAC protocol for wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Convex Optimization
Medium access control with coordinated adaptive sleeping for wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Versatile low power media access for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Dwarf: delay-aware robust forwarding for energy-constrained wireless sensor networks
DCOSS'07 Proceedings of the 3rd IEEE international conference on Distributed computing in sensor systems
Sift: a MAC protocol for event-driven wireless sensor networks
EWSN'06 Proceedings of the Third European conference on Wireless Sensor Networks
An energy-efficient integrated mac and routing protocol for wireless sensor networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Strawman: resolving collisions in bursty low-power wireless networks
Proceedings of the 11th international conference on Information Processing in Sensor Networks
Low power counting via collaborative wireless communications
Proceedings of the 12th international conference on Information processing in sensor networks
Analysis of a prioritized contention model for multimedia wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
Design and implementation of a single radio multi-channel MAC protocol on IEEE 802.15.4 for WBAN
Proceedings of the 8th International Conference on Ubiquitous Information Management and Communication
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Collection of rare but delay-critical messages from a group of sensor nodes is a key process in many wireless sensor network applications.This is particularly important for security related applications like intrusion detection and fire alarm systems.An event sensed by multiple sensor nodes in the network can trigger many messages to be sent simultaneously. We present Alert, a MAC protocol for collecting event-triggered urgent messages from a group of sensor nodes with minimum latency and {without requiring any cooperation or pre-scheduling among the senders or between senders and receiver} during protocol execution. Alert is designed to handle multiple simultaneous messages efficiently and reliably minimizing the overall delay to collect all messages along with the delay to get the first message. Moreover, the ability to handle a large number of simultaneous messages does not come at the cost of excessive delays when only a few messages need to be handled. We analyze Alert and evaluate its feasibility and performance with an implementation on commodity hardware. We further compare Alert with existing approaches through simulations and show the performance improvement possible through Alert.