| 基于NS-2的LEACH协议改进 |
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| 引用本文： | 彭艾,黄岚,王忠义,王成. 基于NS-2的LEACH协议改进[J]. 计算机工程, 2009, 35(21): 97-100 |
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| 作者姓名： | 彭艾 黄岚 王忠义 王成 |
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| 作者单位： | 中国农业大学信息与电气工程学院,北京,100083;国家农业信息化工程技术研究中心,北京,100097 |
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| 基金项目： | 国家"863"计划基金资助项目，"十一五"国家科技支撑计划基金资助项目 |
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| 摘 要： | 针对无线传感器网络能量有限的问题，从稳定性的角度出发，提出LEACH协议的低功耗改进方案。借助NS-2仿真对比改进前后协议的运行结果，讨论传感器能耗对协议低功耗改进的影响。仿真结果表明，协议改进后网络生存期和传输数据量分别增加了45.87%和35.16%，变异系数(CV值)得到改善，但当传感器耗能占节点总能量的60%时，协议的改进没有效果。
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| 关 键 词： | LEACH协议 NS-2仿真 低能耗 传感器耗能 |
| 修稿时间： | |
Improvement of LEACH Protocol Based on NS-2 |
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| PENG Ai,HUANG Lan,WANG Zhong-yi,WANG Cheng. Improvement of LEACH Protocol Based on NS-2[J]. Computer Engineering, 2009, 35(21): 97-100 |
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| Authors: | PENG Ai HUANG Lan WANG Zhong-yi WANG Cheng |
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| Affiliation: | (1. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083; 2. National Engineering Research Center for Information Technology in Agriculture, Beijing 100097) |
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| Abstract: | Aiming at the problem of limited energy of Wireless Sensor Networks(WSN), this paper proposes an approach of energy-saving improving for LEACH protocol in aspect of stability. Using a simulation software NS-2 simulation, this paper compares performances of the improved version of LEACH protocol with the original one and discussed the influence of the energy dissipation of sensing module on the protocol improvement. Simulation results show that the modified protocol improves 45.87% longer lifetime and 35.16% more data than the original one as well as the value of CV. But it is found that when the energy dissipation of sensing module is more than 60% of the total energy, the improvement of the protocol is invalid. |
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| Keywords: | LEACH protocol NS-2 simulation low energy consumption energy dissipation of sensor |
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