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PERCOM
2006
ACM

Distributed Cross-Layer Scheduling for In-Network Sensor Query Processing

14 years 11 months ago
Distributed Cross-Layer Scheduling for In-Network Sensor Query Processing
In-network sensor query processing is a cross-layer design paradigm in which networked sensor nodes process data acquisitional queries in collaboration with one another. As power efficiency is still one of the most severe constraints in this paradigm, we propose a distributed, cross-layer scheduling scheme for it. In this scheme, each node employs its MAC, routing, and query layers to negotiate with its parent its timing for transmission and constructs a schedule for its query processing. It then follows the schedule to compute, communicate, and sleep in each query processing cycle. This scheduling reduces wasted listening and receiving as well as the switching between active and sleeping modes. Consequently, it results in 50-60% of power saving on real sensor nodes in our experiments. Additionally, it outperforms two existing scheduling schemes both on schedule construction efficiency and on schedule quality.
Hejun Wu, Qiong Luo, Wenwei Xue
Added 24 Dec 2009
Updated 24 Dec 2009
Type Conference
Year 2006
Where PERCOM
Authors Hejun Wu, Qiong Luo, Wenwei Xue
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