Distributed wake-up scheduling for data collection in tree-based wireless sensor networks

Authors:
Fang-Jing Wu;Yu-Chee Tseng
Affiliations:
Department of Computer Science, National Chiao-Tung University, Taiwan;Department of Computer Science, National Chiao-Tung University, Taiwan
Venue:
IEEE Communications Letters
Year:
2009

Citing 4
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Abstract

In a multi-hop wireless network, a conventional way of defining interference neighbors is to prohibit a node from using the same slot/code as those of its 1-hop and 2-hop neighbors. However, for data collection in a wireless sensor network, since the set of communication nodes is limited and the transmission directions are toward the sink, we show that a less strict set of interference neighbors can be defined. Based on this observation, we develop an efficient distributed wake-up scheduling scheme for data collection in a sensor network that achieves both energy conservation and low reporting latency.