An Adaptive Fault-tolerant Scheme for Wireless Sensor Networks

被引：3
|
作者：
Chen Yan-ming [1 ,2 ]
Xu Yong-jun [2 ]
Wang Qiu-guang [1 ]
Xie Lei [2 ,3 ]
机构：
[1] Harbin Univ Sci & Technol, Coll Elect & Elect Engn, Harbin 150040, Peoples R China
[2] Chinese Acad Sci, Comp Technol Inst, Beijing 100190, Peoples R China
[3] Informat Engn Univ, Zhengzhou, Peoples R China
来源：
2009 WRI INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND MOBILE COMPUTING: CMC 2009, VOL 2 | 2009年
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1109/CMC.2009.276
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
We devise an adaptive-fault tolerant scheme based on the Exponentially Weighted Moving Average (EWMA) which can provide fault tolerant in sensor networks and balance between traffic overhead and transmission failure. We use the multipath routing to transmit packets, and according to wireless network environments we adaptively change the required number of paths for transmission. So it can achieve the optimization that takes fault tolerance into account with the optimal required number of paths. The source node uses Forward Error Correction (FEC) erasure coding to encode each packet into multiple fragments and transmits the fragments to sink over multipath which are node disjoint. The sink node can use erasure coding to reconstruct the original data if it receives enough fragments. In the simulation we compare our scheme with previous study, it increases the reliability of packet delivery in wireless sensor network, while decreases the total network traffic.
引用
收藏
页码：32 / +
页数：2
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