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电子发烧友网>电子资料下载>嵌入式开发>Contiki之父Adam Dunkels经典论文

Contiki之父Adam Dunkels经典论文

2017-09-25 | rar | 4928KB | 次下载 | 1积分

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CONTIKI

  We make the case for a sensor network model in which each mote stores sensor data locally, and provides a database query interface to the data. Unlike TinyDB and Cougar, in which a sink node provides a database-like front end for fil-tering the current sensor values from a data collection net-work, we propose that each sensor device should run its own database system. We present Antelope, a database man-agement system for resource-constrained sensors. Antelope provides a dynamic database system that enables run-time creation and deletion of databases and indexes. Antelope uses energy-efficient indexing techniques that significantly improve the performance of queries. The energy cost of a query that selects 100 tuples is less than the cost of a sin-gle packet transmission. Moving forward, we believe that database techniques will be increasingly important in many emerging applications.

  Over the last years, low-power flash memory has both rapidly decreased in cost and rapidly increased in storage ca-pacity. For sensor nodes, today’s flash memories can, for most practical purposes, be considered infinite: nodes will run out of battery before running out of storage space. We argue that this opens for a new sensor network model, where nodes store their data in a local flash storage and provide

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