| 一种改进的无线传感器网络分簇路由算法 |
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| 引用本文： | 刘海洋,杨宇航. 一种改进的无线传感器网络分簇路由算法[J]. 计算机工程与应用, 2010, 46(23): 82-84. DOI: 10.3778/j.issn.1002-8331.2010.23.023 |
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| 作者姓名： | 刘海洋 杨宇航 |
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| 作者单位： | 上海交通大学,电子系,上海,200240 |
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| 摘 要： | 在无线传感器网络中，分簇路由具有管理方便、高效节能、易于实现等特点，成为当前重点研究的路由算法。现有的典型分簇路由算法存在着簇首节点能耗分布不均，簇首节点与基站未采用最短路径，数据可能“绕道”传递等缺陷，使得在网络规模较大时网络能耗及生命周期等性能表现不佳。针对这些问题，结合LEACH和SHORT的思想提出了一种改进的多层分簇路由算法（LEACH-S），它建立了簇首到簇首路由，并保证相邻簇首之间距离最短。NS2仿真结果表明，在网络规模较大，密度较低时，LEACH-S较LEACH-C将网络生命周期延长了约15%。
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| 关 键 词： | 无线传感器网络 分簇路由 LEACH NS2 |
| 收稿时间： | 2009-05-18 |
| 修稿时间： | 2009-7-28 |
Improved cluster-based routing protocol for Wireless Sensor Networks |
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| LIU Hai-yang,YANG Yu-hang. Improved cluster-based routing protocol for Wireless Sensor Networks[J]. Computer Engineering and Applications, 2010, 46(23): 82-84. DOI: 10.3778/j.issn.1002-8331.2010.23.023 |
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| Authors: | LIU Hai-yang YANG Yu-hang |
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| Affiliation: | Department of Elesctronic Engineering,Shanghai Jiaotong University,Shanghai 200240,China |
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| Abstract: | In the research of wireless sensor networks,cluster-based routing protocols become important since they excel in network topology management,energy efficiency,and applications.The existing cluster-based routing protocols do not perform so well in network energy consumption and lifetime when the network is large,because energy consumption among cluster-heads are not uniform,the route between BS and cluster-heads may be not the shortest,and data may make a detour.A novel multilayer cluster-based scheme（LEACH-S） is proposed,which integrates the concepts of LEACH and SHORT. LEACH-S setups routes between cluster-heads and ensures the distance is smallest.The simulation with NS2 shows that LEACH-S outperforms LEACH-C nearly 15% when the network is sparse and large. |
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| Keywords: | LEACH NS2 |
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