Time synchronization problem of wireless sensor network using maximum probability theory

2018 ◽  
Vol 9 (2) ◽  
pp. 517-524 ◽  
Author(s):  
Divya Upadhyay ◽  
Ashwani Kumar Dubey ◽  
P. Santhi Thilagam
Keyword(s):  
Probability Theory ◽  
Wireless Sensor Network ◽  
Sensor Network ◽  
Time Synchronization ◽  
Wireless Sensor ◽  
Maximum Probability ◽  
Synchronization Problem

A Statistical Tool for Time Synchronization Problem in WSN

2019 ◽  
Vol 13 (2) ◽  
pp. 154-158 ◽  
Author(s):  
D. Upadhyay ◽  
A.K. Dubey ◽  
P.S. Thilagam
Keyword(s):  
Probability Theory ◽  
Wireless Sensor Network ◽  
Sensor Network ◽  
Message Passing ◽  
Time Synchronization ◽  
Wireless Sensor ◽  
Maximum Probability ◽  
Statistical Tool ◽  
Synchronization Problem ◽  
Best Value

Background: In recent research, time synchronization has a great importance in the various application of wireless sensor network. Localization, tracking, message passing using contention-based schemes and communication are some of the fields where synchronization between sensor clocks is highly required. Therefore, several algorithms were designed to achieve a rational and reliable frame of time within the wireless sensor network. Patents related to time synchronization in WSN were also analyzed. Methods: This paper discusses the powerful statistical tool using maximum probability theory for synchronizing the time within the sensor's clock. In this paper, maximum probability theory is applied to estimate the best value of clock offset between two sensor clocks. The proposed algorithm is analyzed by exchanging timing messages between nodes using two-way message exchange schemes. Results: The proposed algorithm is also implemented along with a Time-Sync Protocol for Sensor Network. It reduces error deviation from 2.32 to 0.064 ms as compared with Time-Sync Protocol for Sensor Network without proposed works. Conclusion: It was observed that for a small network, proposed work gives better and efficient results with Time-Sync Protocol for Sensor Network.

The Research of WSN Time Synchronization Algorithm Based on Clustering Network

2012 ◽  
Vol 157-158 ◽  
pp. 1340-1345 ◽  
Author(s):  
Yuan Yuan Shang ◽  
Zhou Wan ◽  
Xue Hua Zhang ◽  
Zhong Guo Jing ◽  
Xin Xiong
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Simulation Experiment ◽  
Time Synchronization ◽  
Wireless Transmission ◽  
Wireless Sensor ◽  
Simulation Platform ◽  
Synchronization Problem ◽  
Synchronization Algorithm ◽  
Message Mechanism

In order to solve time synchronization problem of wireless sensor network, combined with the broadcast characteristics of wireless transmission and bi-directional message mechanism and the characteristics of clustering network, this paper presents an improved time synchronization algorithm HLTN based on clustering network and the simulation experiment by NS-2 simulation platform and analyzed the results.

scholarly journals Time Synchronization and Communication Program of Wireless Sensor Network for Online Monitoring of Electrical Equipment

2017 ◽  
Vol 13 (07) ◽  
pp. 36
Author(s):  
Yuxia Shen
Keyword(s):  
Operating System ◽  
Wireless Sensor Networks ◽  
Wireless Sensor Network ◽  
Sensor Networks ◽  
Sensor Network ◽  
Online Monitoring ◽  
Time Synchronization ◽  
Electrical Equipment ◽  
Wireless Sensor ◽  
Zigbee Protocol

<p><span style="font-size: medium;"><span style="font-family: 宋体;">In wireless sensor networks, for improving the time synchronization perfromance of online monitoring and application of ZigBee protocol, a scheme is designed. For this objective, first of all, the ZigBee protocol specification is summarized, a profound analysis of the hardware abstraction architecture of TinyOS operating system is made; the advantages of the ZigBee protocol compared with the traditional radio technology are comparatively analyzed. At the same time, the node design block diagram based on CC2430 and related development system is provided. In the TinyOS2.x operating system, we analyze CC2430 application program abstract architecture, and on this basis, give the realization process of program design. The research results showed that we achieve an on-line monitoring system based on ZigBee protocol, which has realistic significance of applying ZigBee protocol in wireless sensor network of electrical equipment online monitoring. Based on the above research, it is concluded that the online monitoring system can collect the temperature parameters of the monitored object in real time that it can be widely applied in wireless sensor networks.</span></span></p>

A Simple Monitoring Network System of Wireless Sensor Network

2013 ◽  
Vol 278-280 ◽  
pp. 689-692 ◽  
Author(s):  
Jin Jin Xu ◽  
Sheng Jun Su ◽  
Ming Hui Yuan
Keyword(s):  
Wireless Sensor Networks ◽  
Wireless Sensor Network ◽  
Sensor Network ◽  
Ieee 802.15.4 ◽  
Time Synchronization ◽  
Dynamic Change ◽  
Monitoring Network ◽  
Wireless Sensor ◽  
Network System ◽  
Analysis Program

A SSNS (simple sensor network sniffer) is used to analyze and evaluate the Wireless Sensor Networks (WSN) effectively. SSNS is designed to monitor IEEE 802.15.4 protocol frame, which based on the Ethernet. Unlike the existed monitoring system, our design is much simpler and needs less resource. It is analyzed in this paper that the monitor network framework, time synchronization, and analysis program design. The results show that SSNS works stably, and can real-time display the frame monitored and reflect the dynamic change of WSN.

Sign in / Sign up

Export Citation Format

Share Document