In order to improve the data aggregation ability in the data room and meet the requirements of real-time data transmission and network energy saving,a local tree reconstruction algorithm for heterogeneous wireless sensor networks is proposed.Firstly,the optimal heterogeneous data transmission network topology is obtained by maintaining and reconstructing the local network topology.Secondly,data aggregation technology is proposed to ensure low energy consumption and low delay of data transmission,so as to prolong the lifetime of the network.Through simulation analysis,compared with GIT and data,the performance of the proposed algorithm is significantly better,the network lifetime is increased by 45%,and the variance of node energy consumption is only 0.02.
Key words
wireless sensor network /
data aggregation /
topology control
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