Abstract
Studies of wireless networks often work with a relatively high communication range so that each node typically communicates with a high number of neighbors. This is necessary, with a random placement, to avoid loss of coverage or connectivity. However, communicating through remote neighbors requires more energy, which can be a severe disadvantage since energy is often critical in this type of network. By comparing two-ranges, one to ensure coverage and one to save energy, we identify link-nodes which play an essential role to keep the network connected. Characterizing these nodes and their occurrence in communication routes will help to save energy and increase lifetime of the overall network. Without precautions, these link-nodes receive a high traffic load. Using simulations we find that slightly longer routes can avoid link-nodes and thus reduce average energy consumption. Network lifetime can be extended by identifying these nodes at startup and reducing their energy consumption wherever possible.
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Somsen, O.J.G. Link-Node Characterization for Energy-Efficient Communication in a Static Random Wireless Sensor Network. Wireless Pers Commun 72, 2551–2561 (2013). https://doi.org/10.1007/s11277-013-1165-1
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DOI: https://doi.org/10.1007/s11277-013-1165-1