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| An Energy Saving Routing Algorithm Based on Dijkstra in Wireless Sensor Networks |
| Lun Zhang, Wenchen Yang, Qian Rao, Wei Nai, Decun Dong |
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Abstract This paper presents an Energy Saving-oriented Routing Algorithm
Based on Dijkstra ({\it ESRAD}) in Wireless Sensor Networks (WSN).
The {\it ESRAD} is designed to be economic to energy consumption in
information transmission between any of two sensor nodes in a WSN.
By modeling energy consumption of nodes in a WSN as evaluation index
of hop count judgment in least-hop routing algorithm, this study
first presents an improved Energy Saving-oriented Least-hop Routing
Algorithm ({\it ESLHA}) to search the shortest path of energy
consumption with least nodes between origin node and object node.
Then, in the light that the {\it ESLHA} does not take the energy
consumption in transmission process into account, the {\it ESRAD}
models the evaluation index of energy consumption at each node,
which is the weight of each edge in a WSN, by introducing energy
consumption at both node and transmission process, and employs a
Dijkstra-based routing algorithm to efficiently search the reliable
shortest path with least energy consumption. The performance of the
{\it ESRAD} is compared to those of the {\it ESLHA} and the Dijkstra
for different WSNs. Extensive simulation tests on randomly simulated
WSNs have demonstrated the potential of the proposed {\it ESRAD} for
searching the shortest path with least energy consumption to
transmit information between any of two nodes in WSNs.
DOI: 10.12733/jics20101712
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