Liu Wenwei, Zhu Yihua, Pan Jian. A Grid-based Routing Algorithm with Cross-level Transmission to Prolong Lifetime of Wireless Sensor Networks[J]. Chinese Journal of Electronics, 2010, 19(3): 499-502.
Citation: Liu Wenwei, Zhu Yihua, Pan Jian. A Grid-based Routing Algorithm with Cross-level Transmission to Prolong Lifetime of Wireless Sensor Networks[J]. Chinese Journal of Electronics, 2010, 19(3): 499-502.

A Grid-based Routing Algorithm with Cross-level Transmission to Prolong Lifetime of Wireless Sensor Networks

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-07-05
  • In a Wireless sensor network (WSN) with multi-hop communications, nodes close to a sink drain more battery energy than others in relaying packets, which causes lifetime of the WSN to be shortened. To solve the uneven energy expenditure problem, we present a novel cluster-based routing algorithm, called Grid-based routing algorithm with cross-level transmission (GRACT), in which sensing field is divided into grids constituting several levels, a Cluster head (CH) is elected in each grid, and clusters are formed by letting each non-CH node join the closest CH. Under GRACT, a CH is only allowed to delivers its packets to the neighboring level and the cross level with ratios p and 1-p, respectively. Additionally, two Optimization models are presented to prolong lifetime of the WSN. Simulation results show that GRACT can balance the energy consumption among nodes and improve network lifetime.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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