System architecture directions for networked sensors
ASPLOS IX Proceedings of the ninth international conference on Architectural support for programming languages and operating systems
MANTIS: system support for multimodAl NeTworks of in-situ sensors
WSNA '03 Proceedings of the 2nd ACM international conference on Wireless sensor networks and applications
Evolving real-time systems using hierarchical scheduling and concurrency analysis
RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
Cyclops: in situ image sensing and interpretation in wireless sensor networks
Proceedings of the 3rd international conference on Embedded networked sensor systems
Abstractions for safe concurrent programming in networked embedded systems
Proceedings of the 4th international conference on Embedded networked sensor systems
Improving the energy efficiency of the MANTIS kernel
EWSN'07 Proceedings of the 4th European conference on Wireless sensor networks
FIT: A Flexible, LIght-Weight, and Real-Time Scheduling System for Wireless Sensor Platforms
DCOSS '08 Proceedings of the 4th IEEE international conference on Distributed Computing in Sensor Systems
Validating the sensor network calculus by simulations
WICON '07 Proceedings of the 3rd international conference on Wireless internet
RTNS: an NS-2 extension to simulate wireless real-time distributed systems for structured topologies
WICON '07 Proceedings of the 3rd international conference on Wireless internet
TOSThreads: thread-safe and non-invasive preemption in TinyOS
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
Integrating real-time hybrid task scheduling into a sensor node platform
Proceedings of the 2010 ACM Symposium on Applied Computing
Enix: a lightweight dynamic operating system for tightly constrained wireless sensor platforms
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Threads2Events: an automatic code generation approach
Proceedings of the 6th Workshop on Hot Topics in Embedded Networked Sensors
Proceedings of the 8th International Conference on Ubiquitous Information Management and Communication
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Event-driven operating systems such as TinyOS are the preferred choice for wireless sensor networks. Alternative designs such as MANTIS following a classical multi-threaded approach are also available. Event-based systems are generally more energy efficient than multi-threaded systems. However, multi-threaded systems are more capable than event-based systems of supporting time critical tasks as task preemption is supported. Timeliness can be traded for energy efficiency by choosing the appropriate operating system. In our recent work we have shown that the multi-threaded system MANTIS can be modified to be as energy efficient as TinyOS. As a result, the modified MANTIS can be used to fit both sensor network design goals of energy efficiency and timeliness. This solution is not considered optimal as most existing sensor network applications and software libraries are developed for TinyOS. Therefore, we present a TinyOS modification that adds preemption while retaining the existing TinyOS structure and features.