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| 支持区分服务的无线传感器网络802.11 MAC协议 | |
| 引用本文： | 靳勇,乐德广,吴志刚,白光伟.支持区分服务的无线传感器网络802.11 MAC协议[J].电子技术应用,2010,36(2). |
| 作者姓名： | 靳勇 乐德广 吴志刚 白光伟 |
| 作者单位： | 1. 常熟理工学院计算机科学与工程学院,江苏,常熟,215500 2. 南京理工大学紫金学院,江苏,南京,210094 3. 南京工业大学计算机科学与技术系,江苏,南京,210009 |
| 基金项目： | 国家自然科学基金，常熟理工学院教师科研启动基金，常熟理工学院青年教师科研启动基金 |
| 摘 要： | 针对无线传感器网络不能提供数据流优先级区分的问题,提出了一种基于IEEE802.11MAC协议的改进机制。该机制通过引入新的控制分组,使目的节点可以拒绝接收来自低优先级节点的数据,从而确保了高优先级数据业务的服务质量。数学分析表明,该机制能够使高优先级数据流占用更多的带宽,并且降低了高优先级数据流的分组丢弃概率。能耗分析表明,高优先级数据业务能耗低于低优先级数据业务,随着节点密度的增加,该机制节能效果逐渐明显,适合于节点密度高的无线传感器网络。 |
| 关 键 词： | 无线传感器网络 多媒体服务质量 区分服务 MAC协议 能量高效 |
Analytical study of IEEE 802.11 MAC protocol based on differentiated services for wireless sensor networks |
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| JIN Yong,LE De Guang,WU Zhi Gang,BAI Guang Wei.Analytical study of IEEE 802.11 MAC protocol based on differentiated services for wireless sensor networks[J].Application of Electronic Technique,2010,36(2). | |
| Authors: | JIN Yong LE De Guang WU Zhi Gang BAI Guang Wei |
| Affiliation: | JIN Yong1,LE De Guang1,WU Zhi Gang2,BAI Guang Wei3(1.School of Computer Science & Engineering,Changshu Institute of Technology,Changshu 215500,China,2.Zijin College,Nanjing University of Science & Technology,Nanjing 210094,3.Department of Computer Science & Technology,Nanjing University of Technology,Nanjing 210009,China) |
| Abstract: | Considering that IEEE802.11 wireless sensor networks can not provide any priority scheme,this paper proposes a new scheme based on the 802.11 MAC protocol.The main idea is that,by introducing new types of control frames,receiving nodes may refuse to accept data of low-priority nodes.As a result,the QoS of high-priority data flow is effectively improved.Our mathematical analyses demonstrate that the new mechanism can make the high-priority data flow obtain more bandwidth,and frame dropping probability.Throug... |
| Keywords: | wireless sensor networks multimedia QoS diffserv MAC protocol energy efficient |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |