| 摘要: |
| 无线传感网是当前物联网技术研究的热点，无线传感网中如何对能耗进行控制以延长网络的生存时间又成为其中最受关注的问题.为了实现能耗的有效控制，通过对能耗模型的研究和建立，研究提出了一种基于多信道无线传感网的节能机制.它基于非坚持CSMA协议，是通过对非坚持CSMA协议中退避过程的控制和对物理层调制阶数的控制来达到控制能耗目的.同时结合多信道无线传感网中可使用多个信道的特点，建立的节能机制加入可用信道数量来共同分析和处理.最后仿真试验验证了文中提出的机制具有提升能耗效率的效果. |
| 关键词: 多信道 无线传感网 CSMA协议 节能 |
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| 基金项目:贵州省贵阳市科技局工业振兴计划项目（筑科合同［2012101］12号） |
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| An energy-saving mechanism based on multi channel wireless sensor network |
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| Abstract: |
| Currently wireless sensor network is one of the most hot research in Network of Things. How to control energy consumption to prolong the network survival time in wireless sensor network becomes one of the most concerned problems. In order to achieve effective control of energy consumption, an energy saving mechanism was established based on multi channel wireless sensor network by building energy consumption model. It based on CSMA protocol, and in order to control energy consumption it controls back-off process in non-persistent CSMA protocol and physical layer modulation. And combined with the characteristics of multi channel wireless sensor network, it used multiple channels, so the energy saving mechanism added the available channel number. At last the simulation result proved that it could improve energy efficiency. |
| Key words: multi channel wireless sensor network CSMA protocol energy saving |
