区域不同数据产生率的传感网络能量空洞避免研究

Research to Avoid the Energy Hole Problem in the Wireless Sensor Network that Different Data Generation Rate in Different Regional

研究区域不同数据产生率的无线传感网络的"能量空洞"现象,采用环形网络模型,在此基础上规定了数据的同环内传输和相邻环间传输两种传输机制。当一个簇区域的剩余能量大于设定的阈值时,就停止转发其他扇区内节点的数据分组,转而只发送本区域内节点的数据分组,需要通过此区域转发的数据分组的区域转而寻找同环的其他扇区转发数据。通过理论分析和仿真实验表明,该方法能够平衡无线传感网络的能量消耗,增加网络寿命。

The energy hole problem that different data generation rate in different regional in wireless sensor network was studied, using ring network model. Based on this, two kinds of mechanism were defined, which are the data transmitted in the same ring but different area and the data transmitted in the same area but different rings. When the residual energy in an areas was lower than the energy threshold, the area would stop data packet forwarding for other areas, and only send data packet generated by nodes inside. The data packet that generated by other areas would find other areas in the same ring for data packet forwarding. Theory analysis and simulation test display that this strategy could balance energy consumption in network and prolong the network lifetime.