Journal on Communications ›› 2018, Vol. 39 ›› Issue (3): 53-62.doi: 10.11959/j.issn.1000-436x.2018041

• Special Issue on Internet of Things and Its Security • Previous Articles     Next Articles

Low-latency algorithm for improving data persistence in mobile low-duty-cycle wireless sensor network

Chan JIANG1,2,Taoshen LI1,2,Junbin LIANG2   

  1. 1 School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510641,China
    2 Guangxi Key Laboratory of Multimedia Communications and Network Technology,School of Computer and Electronics Information,Guangxi University,Nanning 530004,China
  • Revised:2018-01-21 Online:2018-03-01 Published:2018-04-02
  • Supported by:
    The National Natural Science Foundation of China(61562005);The National Natural Science Foundation of China(61762010);The National Natural Science Foundation of China(61363067);The Natural Science Foundation of Guangxi Zhuang Autonomous Region(2015GXNSFAA139286);The Cultivation Plan For Thousands of Young and Middle-Aged Backbone Teachers in Guangxi Higher Education School (Guangxi Education People (2017)(49)

Abstract:

Mobile low-duty-cycle wireless sensor network (MLDC-WSN) are a kind of new ad hoc networks that are appeared in recent years.In MLDC-WSN,the nodes only have limited storage spaces.Moreover,the nodes would move or sleep from time to time.Therefore,these networks have some problems such as connectivity is hard to be maintained and data are hard to be transmitted to their destinations for storage in time.As a result,data persistence (i.e.,the probability that all data can be recovered after some nodes die in the networks) is low.A distributed algorithm named LT-MDS for improving data persistence in MLDC-WSN was proposed.The algorithm used a new infectious data dissemination method to transmit the data,which enabled the data to be received by almost all the mobile nodes in a network with low latency and improved the reliability of the network.When a node receives the data,it would use LT (Luby transform) codes to encode and save them.By this way,the nodes with limited storage spaces can save more data information.Theoretical analyses and simulations show that LT-MDS can complete the process of data dissemination and preservation with low latency,and it can achieve high data persistence.

Key words: mobile low-duty-cycle wireless sensor network, data persistence, low latency, infectious data dissemination, data preservation

CLC Number: 

No Suggested Reading articles found!