| 无线传感器网络中基于拥塞程度分级的速率调节机制 |
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| 引用本文： | 江晶晶,白光伟,晏鳌. 无线传感器网络中基于拥塞程度分级的速率调节机制[J]. 微电子学与计算机, 2011, 28(5): 118-121 |
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| 作者姓名： | 江晶晶 白光伟 晏鳌 |
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| 作者单位： | 南京工业大学,计算机科学与技术系,江苏,南京,210009 |
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| 基金项目： | 国家自然科学基金项目，教育部留学回国人员科研启动基金 |
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| 摘 要： | 文中提出一种基于拥塞程度分级的速率调节算法.首先,对缓冲区进行多尺度排队分析,计算出缓冲区的溢出概率.其次,根据溢出概率的值,把节点拥塞程度分成三级.最后,针对每一级拥塞采取相应的速率调节方案来缓解拥塞.实验结果表明,该算法可以有效缓解拥塞,提高无线传感器网络的数据包投递率.
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| 关 键 词： | 无线传感器网络 拥塞控制 拥塞程度分级 |
Rate Adjustment Algorithm Based on Congestion Levels for WSNs |
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| JIANG Jing-jing,BAI Guang-wei,YAN Ao. Rate Adjustment Algorithm Based on Congestion Levels for WSNs[J]. Microelectronics & Computer, 2011, 28(5): 118-121 |
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| Authors: | JIANG Jing-jing BAI Guang-wei YAN Ao |
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| Affiliation: | JIANG Jing-jing,BAI Guang-wei,YAN Ao(Department of Computer Science and Technology,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | This paper presents a rate adjustment mechanism based on congestion levels.We model the buffer using multi-scale queuing analysis to compute the probability of buffer overflow.On this basis,we define the three levels of congestion,and adopt the corresponding approach to rate adjustment to mitigate congestion for each level.The experiments show that this algorithm can improve the packet delivery ratio efficiently for WSNs. |
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| Keywords: | wireless sensor networks congestion control congestion levels |
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