一种基于LEACH-C改进的能量有效分簇协议

针对LEACH-C协议周期性地簇重构会造成额外开销以及簇头节点和普通节点间能耗不均的缺陷,提出了改进的能量有效分簇协议(Improved Energy-Efficient Clustering Hierarchy,IEECH)。在IEECH中,由簇中所选出的发送节点分担簇头节点的高能量负载,因此不再需要进行全局的簇重构。网络节点的能耗由于发送节点的轮转进一步得到了均衡。因此,该算法和LEACH以及LEACH-C相比,可以有效地延长网络的寿命。最后,通过NS2仿真实验也得到了验证。

An Energy-Efficient Clustering Protocol based on LEACH-C

Aiming at LEACH-C for its extra overhead in cluster reconstruction and imbalanced energy consumption between cluster heads and common nodes, IEECH (Improved Energy-Efficient Clustering Hierarchy Protocol) is proposed. In this protocol the sending nodes selected from clusters share the high load of cluster heads, thus it is unnecessary for these nodes to implement the re-clustering of global network. The energy consumption of each cluster member can be balanced via rotation of sending nodes. Therefore, IEECH can prolong the network life-time significantly as compared with LEACH and LEACH-C. Finally, NS2 simulation indicates this result.