基于树形结构的ZigBee能量均衡协议研究  

Energy balanced protocol research based on tree structure ZigBee

作　　者：王琛[1] 柴乔林[1] 王芳[1] 

机构地区：[1]山东大学计算机科学与技术学院,山东济南250061

出　　处：《计算机工程与设计》2009年第15期3534-3536,3586,共4页Computer Engineering and Design

摘　　要：在ZigBee网络的树形拓扑结构中,其网络高层节点面对大量业务时,容易过早耗尽电池能量。针对此问题,提出一种改进的能量均衡路由算法。在改进算法中,综合考虑了网络节点的层次和负载能力。通过计算路由代价,上层节点的功耗被降低,而负载则被分摊至下层节点。另外在路由选择的时候,尽量避开剩余能量较低的节点。仿真结果表明,改进算法可以平衡网络节点的整体耗能,延长关键节点的生存时间,从而提高了ZigBee网络整体的健壮性。The upper nodes tend to use up their power quickly when some heavy transmissions arrive in the ZigBee network shape of tree topology. To solve this problem, an improved energy-balanced routing algorithm is proposed. It is comprehensively considered with the nodes＇ level and load capacity. After computing routing expenses, the power cost of the upper nodes is reduced by sharing their load with their lower nodes. Furthermore, the nodes with lower power are avoided to be selected during routing selection. The OMNET＋＋ simulation results indicate that the improved algorithm can balance the whole energy costs in the network, and prolong the key nodes＇ life. And then the robustness of ZigBee network is enhanced.

关 键 词：ZIGBEE网络 树路由 能量均衡 剩余能量 路由开销 OMNET++仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]