负载均衡的水声传感器网络多跳非均匀分簇路由协议

针对现有水声传感器网络分簇路由协议在簇头选举阶段和数据传输阶段中的不足,设计一种负载均衡的多跳非均匀分簇路由协议(load-balanced multi-hop unequal clustering routing protocol,LBMUC)。该协议基于节点的剩余能量及相对距离,计算节点竞争半径和节点综合属性值,改进优化簇头选举,使得簇头节点分布更加合理,并得以随着剩余能量的变化自适应的调整簇的规模,有效均衡节点的能量消耗；在建立簇间多跳路由阶段,综合考虑节点剩余能量、位置及相邻簇的规模对路由选择的影响,引入中继节点代价函数选择最优中继节点,均衡节点能耗,延长网络生命周期,降低网络丢包率,提高网络性能。仿真实验结果表明,LBMUC协议均衡了节点能耗,有效延长了网络生命周期,降低了数据丢包率。

Load-balanced multi-hop unequal clustering routing protocol in UASNs

Concerning the problem of cluster head election phase and data transmission phase in view of the existing Underwater Acoustic Sensor Networks(UASNs) clustering routing protocol, this paper proposes a load-balanced multi-hop unequal clustering routing protocol(LBMUC). LBMUC computes nodes competition radius and nodes integrated attribute value, base on the residual energy of nodes and relative distance, in order to improve and optimize the cluster head election mechanism which make the distribution of the cluster head nodes more reasonable, and the cluster size can adjust adaptively with the change of the residual energy, and effectively balance energy dissipation of all nodes; for inter-cluster communication, LBMUC adopts a multi-hop routing system which base on nodes location and the neighboring cluster member nodes to balance the energy consumption of the nodes, prolong the network lifetime and decrease the packet loss rate. Simulation results demonstrate that this protocol can balance the energy consumption of the nodes, effectively prolong the network lifetime and decrease the packet loss rate.