移动传感网社区间能量均衡路由算法

Energy-balanced routing algorithm for inter-community in mobile sensor network

在资源受限的无线移动传感器网络(MWSN)中设计能效路由是一个挑战性难题。针对移动传感器网络中社区间路由节点能量消耗过快的问题,提出了一种社区间能量均衡路由算法(ERAI)。设计了一个新的基于节点的剩余能量以及相遇可能性的转发能力路由度量FC。利用此度量FC和相遇节点的去向信息选择中继节点来转发消息。实验数据显示,ERAI路由算法在首个节点消亡时间上与Epidemic和PROPHET路由算法相比分别推迟了12.6%~15.6%和4.5%~8.3%,且节点剩余能量均方差小于Epidemic和PROPHET路由算法。实验结果表明,ERAI在一定程度上均衡了各节点的能耗,延长了网络的生命周期。

Energy efficient routing is a challenging problem in resource constrained Mobile Wireless Sensor Network （MWSN） . Focused on the issue that the energy consumption of the inter-community routing in the mobile sensor network is too fast, an Energy-balanced Routing Algorithm for Inter-community （ERAI） was proposed. In ERAI, a new routing metric FC （ Forwarding Capacity） based on the residual energy of nodes and the probability of encounter was designed. Then, this metric FC and the directional information of encountered nodes were used for selection of a relay node to forward the messages. The experimental data show that the death time of the first node of ERAI was later than that of Epidemic and PROPHET by 12.6% - 15.6% and 4.5% - 8.3% respectively, and the residual energy mean square deviation of ERAI was less than that of Epidemic and PROPHET. The experimental results show that the ERAI can balance the energy consumption of each node to a certain extent, and thus prolongs the network lifetime.