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Front. Inform. Technol. Electron. Eng.  2012, Vol. 13 Issue (9): 660-673    DOI: 10.1631/jzus.C1200029
    
A cross-layer fault tolerance management module for wireless sensor networks
Ozlem Karaca, Radosveta Sokullu
Izmir Vocational School, Dokuz Eylul University, Izmir 35160, Turkey; Department of Electrical and Electronics Engineering, Ege University, Izmir 35100, Turkey
A cross-layer fault tolerance management module for wireless sensor networks
Ozlem Karaca, Radosveta Sokullu
Izmir Vocational School, Dokuz Eylul University, Izmir 35160, Turkey; Department of Electrical and Electronics Engineering, Ege University, Izmir 35100, Turkey
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摘要： It is a well-established fact that wireless sensor networks (WSNs) are very power constraint networks, but besides this, they are inherently more fault-prone than any other type of wireless network and their protocol design is very application specific. Major reasons for the faults are the unpredictable wireless communication channel, battery depletion, as well as fragility and mobility of the nodes. Furthermore, as traditional protocol design methods have proved inadequate, the cross-layer design (CLD) approach, which allows for interactions between different layers, providing more flexible and energy-efficient functionality, has emerged as a viable solution for WSNs. In this study we define a fault tolerance management module suitable to the requirements, limitations, and specifics of WSNs, encompassing methods for fault detection, fault prevention, fault management, and recovery. The suggested solution is in line with the CLD approach, which is an important factor in increasing the network performance. Through simulations the functionality of the network is evaluated, based on packet loss, delay, and energy consumption, and is compared with a similar solution not including fault management. The results achieved support the idea that the introduction of a unified approach to fault management improves the network performance as a whole.
关键词： Wireless sensor networks (WSNs);  Cross-layer frameworks;  Protocol design;  Fault management    
Abstract: It is a well-established fact that wireless sensor networks (WSNs) are very power constraint networks, but besides this, they are inherently more fault-prone than any other type of wireless network and their protocol design is very application specific. Major reasons for the faults are the unpredictable wireless communication channel, battery depletion, as well as fragility and mobility of the nodes. Furthermore, as traditional protocol design methods have proved inadequate, the cross-layer design (CLD) approach, which allows for interactions between different layers, providing more flexible and energy-efficient functionality, has emerged as a viable solution for WSNs. In this study we define a fault tolerance management module suitable to the requirements, limitations, and specifics of WSNs, encompassing methods for fault detection, fault prevention, fault management, and recovery. The suggested solution is in line with the CLD approach, which is an important factor in increasing the network performance. Through simulations the functionality of the network is evaluated, based on packet loss, delay, and energy consumption, and is compared with a similar solution not including fault management. The results achieved support the idea that the introduction of a unified approach to fault management improves the network performance as a whole.
Key words: Wireless sensor networks (WSNs)    Cross-layer frameworks    Protocol design    Fault management
收稿日期: 2012-02-03 出版日期: 2012-09-05
CLC:  TP393  
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Ozlem Karaca
Radosveta Sokullu

引用本文:

Ozlem Karaca, Radosveta Sokullu. A cross-layer fault tolerance management module for wireless sensor networks. Front. Inform. Technol. Electron. Eng., 2012, 13(9): 660-673.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C1200029    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2012/V13/I9/660

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