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Front. Inform. Technol. Electron. Eng.  2010, Vol. 11 Issue (1): 63-73    DOI: 10.1631/jzus.C0910204
    
Congestion avoidance, detection and alleviation in wireless sensor networks
Wei-wei FANG*,1, Ji-ming CHEN2, Lei SHU3, Tian-shu CHU1, De-pei QIAN1
1 Sino-German Joint Software Institute, School of Computer Science, Beihang University, Beijing 100191, China 2 State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China 3 Digital Enterprise Research Institute, National University of Ireland, Galway, Ireland
Congestion avoidance, detection and alleviation in wireless sensor networks
Wei-wei FANG*,1, Ji-ming CHEN2, Lei SHU3, Tian-shu CHU1, De-pei QIAN1
1 Sino-German Joint Software Institute, School of Computer Science, Beihang University, Beijing 100191, China 2 State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China 3 Digital Enterprise Research Institute, National University of Ireland, Galway, Ireland
 全文: PDF(638 KB)  
摘要： Congestion in wireless sensor networks (WSNs) not only causes severe information loss but also leads to excessive energy consumption. To address this problem, a novel scheme for congestion avoidance, detection and alleviation (CADA) in WSNs is proposed in this paper. By exploiting data characteristics, a small number of representative nodes are chosen from those in the event area as data sources, so that the source traffic can be suppressed proactively to avoid potential congestion. Once congestion occurs inevitably due to traffic mergence, it will be detected in a timely way by the hotspot node based on a combination of buffer occupancy and channel utilization. Congestion is then alleviated reactively by either dynamic traffic multiplexing or source rate regulation in accordance with the specific hotspot scenarios. Extensive simulation results under typical congestion scenarios are presented to illuminate the distinguished performance of the proposed scheme.
关键词： Wireless sensor network (WSN);  Congestion control;  Correlation;  Traffic multiplexing;  Rate regulation    
Abstract: Congestion in wireless sensor networks (WSNs) not only causes severe information loss but also leads to excessive energy consumption. To address this problem, a novel scheme for congestion avoidance, detection and alleviation (CADA) in WSNs is proposed in this paper. By exploiting data characteristics, a small number of representative nodes are chosen from those in the event area as data sources, so that the source traffic can be suppressed proactively to avoid potential congestion. Once congestion occurs inevitably due to traffic mergence, it will be detected in a timely way by the hotspot node based on a combination of buffer occupancy and channel utilization. Congestion is then alleviated reactively by either dynamic traffic multiplexing or source rate regulation in accordance with the specific hotspot scenarios. Extensive simulation results under typical congestion scenarios are presented to illuminate the distinguished performance of the proposed scheme.
Key words: Wireless sensor network (WSN)    Congestion control    Correlation    Traffic multiplexing    Rate regulation
收稿日期: 2009-04-13 出版日期: 2009-11-30
CLC:  TP393  
基金资助:

Project  supported  by  the  National  Natural  Science  Foundation  of China  (Nos.  60673180,  90412011  and  90612004),  the  International

Science   and   Technology   Cooperative   Program   of   China   (No.

2006DFA11080), the Research Program of Federal Ministry of Edu-

cation  and  Research  of  Germany  (No.  01BU0680),  and  the  Lion

Project of Science Foundation of Ireland to Lei Shu (No. SFI/08/CE/

I1380)  

通讯作者: Wei-wei FANG     E-mail: fangvv@gmail.com
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引用本文:

Wei-wei FANG, Ji-ming CHEN, Lei SHU, Tian-shu CHU, De-pei QIAN. Congestion avoidance, detection and alleviation in wireless sensor networks. Front. Inform. Technol. Electron. Eng., 2010, 11(1): 63-73.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C0910204    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2010/V11/I1/63

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