摘要

In order to balance the energy consumption and extend the network lifetime, a new data distribution scheme was proposed for the heterogeneous wireless sensor network based on the partial network coding. In the scheme, partial nodes participated in the network coding and the encoding nodes were categorized into the business encoding nodes and capability encoding nodes based on the heterogeneity of sensor nodes and the event-driven way, which increased the robustness of the network coding and improved the efficiency of network coding. According to the excessive energy consumption, the coding state of the scheme can be transformed into Suspend and Sleep state, and the corresponding process was divided into starting the business encoding, periodic checking, triggering the capability encoding and energy balancing. The simulation results show that the scheme extends the lifetime of the sensor network because of the energy-balancing superior to the traditional network coding scheme.

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