能量高效的无线传感器网络动态分簇算法研究

Study on energy efficient dynamic clustering algorithm for wireless sensor networks

为了提高无线传感器网络的能量利用率和延长网络的生命周期,提出了基于地理位置的能量高效的动态成簇算法(GL-DC),在簇的建立阶段,采用非均匀分簇方法,解决了簇首能量消耗不均衡问题。在网络运行过程中,采用基于剩余能量和距离来动态生成新的簇首,避免了靠近SINK节点的簇头因转发大量数据而过早耗尽能量。仿真实验结果表明,该方法具有更好的性能,与EADEEG、LEACH和PEGASIS等路由协议相比,GL-DC路由协议有效地均衡了节点能量消耗,显著地延长了网络生命周期。

An energy efficient dynamic clustering algorithm based on geographical location （GL-DC） for wireless sensor netwoks isproposed to improve energy efficiency and extend the network life cycle. In cluster establishment phase, this protocol uses non-uniform clustering to solve the cluster head energy imbalance problem; during the network operation, it dynamically generates the new cluster head based on residual energy and distance to avoid the cluster heads closed with sink will soon run out of energy. The experimental results show that GL-DC balances the energy consumption of nodes effectively and extends the network lifetime significantly compared with LEACH, EADEEG and PAGASIS.