| 基于定向扩散的传感器网络拥塞与速率控制 |
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| 引用本文： | 柳立峰,邹仕洪,张雷,程时端. 基于定向扩散的传感器网络拥塞与速率控制[J]. 北京邮电大学学报, 2006, 29(2): 90-93 |
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| 作者姓名： | 柳立峰 邹仕洪 张雷 程时端 |
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| 作者单位： | 北京邮电大学,网络与交换技术国家重点实验室,北京,100876;北京邮电大学,网络与交换技术国家重点实验室,北京,100876;北京邮电大学,网络与交换技术国家重点实验室,北京,100876;北京邮电大学,网络与交换技术国家重点实验室,北京,100876 |
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| 摘 要： | 提出了一种无线传感器网络中基于定向扩散的拥塞与速率控制机制(CRDD)，主要包含拥塞发生时的拥塞控制和拥塞消除之后的速率调节2个部分，其中拥塞控制由拥塞节点逐跳反馈拥塞通知消息实现，速率调节由接入网关（sink）定期更新速率调节消息实现. CRDD机制既能迅速缓解拥塞，又能在拥塞消除之后调节节点速率以减少网络能量消耗.
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| 关 键 词： | 无线传感器网络 定向扩散 拥塞控制 速率控制 |
| 文章编号： | 1007-5321（2006）02-0090-04 |
| 收稿时间： | 2005-03-20 |
| 修稿时间： | 2005-03-20 |
A Congestion and Rate Control Scheme Based on Directed Diffusion in Wireless Sensor Networks |
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| LIU Li-feng,ZOU Shi-hong,ZHANG Lei,CHENG Shi-duan. A Congestion and Rate Control Scheme Based on Directed Diffusion in Wireless Sensor Networks[J]. Journal of Beijing University of Posts and Telecommunications, 2006, 29(2): 90-93 |
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| Authors: | LIU Li-feng ZOU Shi-hong ZHANG Lei CHENG Shi-duan |
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| Affiliation: | State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications |
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| Abstract: | A congestion and rate control scheme based on directed diffusion(CRDD) was presented,which comprises two mechanisms: congestion control when congestion occurs and rate adjustment when congestion disappears.The congestion control was achieved by congested node to feedback congestion notification massage hop-by-hop,while the rate adjustment was achieved by sink to refresh rate adjustment message periodically.CRDD can not only mitigate congestion rapidly,but also adjust sensor's rate to reduce network energy consumption. |
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| Keywords: | wireless sensor network directed diffusion congestion control rate control |
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