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已有研究显示,将无线能量转移机制应用到WSN中能够从根本上改善WSN的寿命.为了提供稳定的并且高的充电效率以提高网络的性能,提出了一种基于分簇的多移动充电器(Mobile Charger,MC)协同充电策略C-MCC,文中定义MC相对合适度用于衡量网络中的MC相对于簇头节点的合适程度,并结合MC的当前剩余能量和MC与簇头节点的距离给出了相应的计算公式.在C-MCC中,整个网络被划分为多个充电簇,簇头节点只向网络中相对合适度最大的MC传送簇状态信息.MC在进行充电决策时,不仅考虑了充电簇的当前剩余能量,还考虑了MC与簇头节点之间的距离.仿真结果表明,C-MCC提高了充电效率,在网络中存活的节点数方面较DCLK都有所增加,网络路由鲁棒性和网络连通度较DCLK提高了7.7%.
Previous studies have shown that the application of wireless energy transfer mechanism to WSN can radically improve the lifetime of WSN.In order to provide stable and high charging efficiency to improve the performance of the network, a clustered multi-mobile charger (C-MCC) is proposed for Mobile Charger (MC) co-charging strategy. The relative fitness of MC is defined to measure the appropriateness of MC relative to cluster head node in the network. Combined with the current residual energy of MC and the distance between MC and cluster head node The corresponding calculation formula is given.In the C-MCC, the whole network is divided into a plurality of charging clusters, and the cluster head node only sends the cluster status information to the MC with the most suitable MC in the network.MC not only makes the charging decision, not only Considering the current remaining energy of the charging cluster, the distance between the MC and the cluster head node is also considered. The simulation results show that the C-MCC improves the charging efficiency and increases the number of nodes surviving in the network compared with DCLK. The network Routing robustness and network connectivity are up 7.7% from DCLK.