WSN中六边形集中式分簇多跳路由协议

针对节点随机分布的大规模无线传感器网络，提出了一种六边形集中式分簇多跳路由协议(HCCM)．基站根据能耗确定簇内平均节点数，并以合适的边长确定六边形完成初步分簇; 根据簇内的节点数进行分簇优化;依据节点剩余能量选择簇头及传输路径，分配合适的时隙以多跳形式完成信息的传输．仿真结果表明，与LEACH协议及其改进的协议(DE-LEACH)相比，在小规模网络中，协议HCCM延长了网络寿命，但接收的数据包数较少，性能略差; 在大规模网络中，协议HCCM提高了网络性能，比改进的协议(EECT)网络寿命延长了15%，接收的数据包增加了9.5%．

Hexagonal centralized cluster-based multi-hop routing protocol for WSN

For random distribution of large-scale wireless sensor networks(WSNs),a hexagonal centralized cluster-based multi-hop routing protocol(HCCM) is proposed.The base station divides clusters with the lowest energy consumption by choosing the length of a hexagon,and then optimizes clusters according to the number of nodes in practice.Based on the received energy information,the cluster head and multi-hop transmission path are determined with suitable slots being allotted to transmit data.Simulation results show that compared with the low energy adaptive cluster hierarchy(LEACH) and differential evolution-based routing algorithm(DELEACH),this protocol prolongs the network life with fewer packets being received in the small scale network.But in large scale networks,this protocol prolongs the network life by 15% and receives 9.5% more packets compared with the energy-efficient clustering technique(EECT),thus improving the network performance,which verifies that this protocol is suitable for large-scale WSNs.