Networked estimation for event-based sampling systems with packet dropouts.
Networked estimation for event-based sampling systems with packet dropouts.
复制标题
带有数据包辍学的基于事件的采样系统的网络估计。
DOI:
10.3390/s90403078
复制
发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Suh YS
中科院分区:
文献类型:
--
作者:
Nguyen VH;Suh YS
This paper is concerned with a networked estimation problem in which sensor data are transmitted over the network. In the event-based sampling scheme known as level-crossing or send-on-delta (SOD), sensor data are transmitted to the estimator node if the difference between the current sensor value and the last transmitted one is greater than a given threshold. Event-based sampling has been shown to be more efficient than the time-triggered one in some situations, especially in network bandwidth improvement. However, it cannot detect packet dropout situations because data transmission and reception do not use a periodical time-stamp mechanism as found in time-triggered sampling systems. Motivated by this issue, we propose a modified event-based sampling scheme called modified SOD in which sensor data are sent when either the change of sensor output exceeds a given threshold or the time elapses more than a given interval. Through simulation results, we show that the proposed modified SOD sampling significantly improves estimation performance when packet dropouts happen.
登录
查看更多内容
影响因子:
6.8
作者:
Sahebsara, Mehrdad;Chen, Tongwen;Shah, Sirish L.
通讯作者:
Shah, Sirish L.
影响因子:
5.4
作者:
Wang, Zidong;Yang, Fuwen;Liu, Xiaohui
通讯作者:
Liu, Xiaohui
影响因子:
6.4
作者:
Sun, Shuli;Xie, Lihua;Soh, Yeng Chai
通讯作者:
Soh, Yeng Chai
影响因子:
3.9
作者:
Miskowicz, Marek
通讯作者:
Miskowicz, Marek
DOI:
10.3390/s7102128
发表时间:
2007-10-05
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Nguyen VH;Suh YS
通讯作者:
Suh YS