Infrastructure-Establishment from Scratch in Wireless Sensor Networks
We present a distributed, localized and integrated approach for establishing both low-level (i.e. exploration of 1-hop neighbors, interference avoidance) and high-level (a subgraph of the unit-disk graph) infrastructure in wireless sensor networks. More concretely, our proposed scheme constructs a subgraph of the unit-disk graph which is connected, planar and has power stretch factor of 1 (the well-known Gabriel graph intersected with the unit disk-graph) and – most importantly – deals explicitly with the problem of interference between nearby stations. Due to our interleaved approach of constructing low- and high-level infrastructure simultaneously, this results in considerable improvements in running time when applied in dense wireless networks.
To substantiate the advantages of our approach, we introduce a novel distribution model inspired by actual sensing applications and analyze our new approach in that framework.
KeywordsWireless Sensor Network Time Slot Transmission Range Node Distribution Communication Graph
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