西安交通大学智能网络与网络安全教育部重点实验室,西安,710049
网络首发:2012-06-10,
纸质出版:2012
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李彬 1, 王文杰 1, 殷勤业 1, 等. 无线传感器网络节点协作的节能路由传输[J]. 西安交通大学学报, 2012,46(6):1-6.
An Energy-Efficient Routing with Sensor Nodes Cooperation in reless Sensor Network[J]. 2012, 46(6): 1-6.
针对无线传感器网络(WSN)中数据传输低能耗的需求
提出了一种节点协作的节能路由传输(ECGR)算法.该算法由以下2个方面构成:在物理层
WSN根据数据包循环冗余校验功能获得能够正确解包的节点
然后利用竞争选取算法推举出簇头节点
并通过与簇头节点进行信息交换
形成协作节点簇
从而进行协作发射信号
最终实现多节点分集增益; 在网络层
协作节点簇利用基于地理位置信息路由算法
促使数据包始终向目的节点路由
避免了数据包路由向其他方向扩散.与其他同类算法相比
ECGR算法不仅增加了节点簇的传输距离
而且降低了网络整体能耗
并将能耗平衡分布于诸多节点
进而延长了网络寿命.仿真实验表明
当节点密度为0.03时
历经400次仿真
ECGR算法的节点存活率比基于地理位置的路由算法提高了70%.
An energy-efficient cooperative geographic routing(ECGR)is proposed for wireless sensor networks(WSN). The proposed algorithm is composed of two aspects: at physical layer
WSN uses cyclic redundancy check to find out the nodes that can correctly decode the packet. A competitive selection algorithm is then used to select a header node from these nodes and a new cluster is formed through information exchange with the header node. Then
the cluster transmits the packet cooperatively and finally realizes multi-node diversity gain. At the network layer
ECGR uses the geographic routing to make the packet always rout toward the destination and to avoid diverging routes. Compared with other works
the ECGR increases the transmit distance of each hop
reduces the overall network energy consumption and balances the energy consumption among the sensor nodes
and hence the life of the network is extended. Simulation results in 400 simulation rounds and comparisons with geographic routing algorithm with 0.03 node density show that the alive rate of nodes in ECGR improves about 70%.
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