Power utility maximization for multiple-supply systems by a load-matching switch
Proceedings of the 2004 international symposium on Low power electronics and design
Ultra-low power data storage for sensor networks
Proceedings of the 5th international conference on Information processing in sensor networks
Design considerations for solar energy harvesting wireless embedded systems
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Perpetual environmentally powered sensor networks
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Avrora: scalable sensor network simulation with precise timing
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Everlast: long-life, supercapacitor-operated wireless sensor node
Proceedings of the 2006 international symposium on Low power electronics and design
Long-duration solar-powered wireless sensor networks
Proceedings of the 4th workshop on Embedded networked sensors
Exploring the Processor and ISA Design for Wireless Sensor Network Applications
VLSID '08 Proceedings of the 21st International Conference on VLSI Design
An efficient solar energy harvester for wireless sensor nodes
Proceedings of the conference on Design, automation and test in Europe
Architecting phase change memory as a scalable dram alternative
Proceedings of the 36th annual international symposium on Computer architecture
A durable and energy efficient main memory using phase change memory technology
Proceedings of the 36th annual international symposium on Computer architecture
Towards update-conscious compilation for energy-efficient code dissemination in WSNs
ACM Transactions on Architecture and Code Optimization (TACO)
Solar Energy Harvesting for Wireless Sensor Networks
CICSYN '09 Proceedings of the 2009 First International Conference on Computational Intelligence, Communication Systems and Networks
SolarCore: Solar energy driven multi-core architecture power management
HPCA '11 Proceedings of the 2011 IEEE 17th International Symposium on High Performance Computer Architecture
Emerging non-volatile memories: opportunities and challenges
CODES+ISSS '11 Proceedings of the seventh IEEE/ACM/IFIP international conference on Hardware/software codesign and system synthesis
Compiler directed write-mode selection for high performance low power volatile PCM
Proceedings of the 14th ACM SIGPLAN/SIGBED conference on Languages, compilers and tools for embedded systems
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Sustainability of wireless sensor network (WSN) is crucial to its economy and efficiency. While previous works have focused on solving the energy source limitation through solar energy harvesting, we reveal in this paper that sensor node's lifespan could also be limited by memory wear-out and battery cycle life. We propose a sustainable sensor node design that takes all three limiting factors into consideration. Our design uses Phase Change Memory (PCM) to solve Flash memory's endurance issue. By leveraging PCM's adjustable write width, we propose a low-cost, fine-grained load tuning technique that allows the sensor node to match current MPP of solar panel and reduces the number of discharge/charge cycles on battery. Our modeling and experiments show that our sustainable sensor node design can achieve on average 5.1 years of node lifetime, more than 2× over the baseline.