Acta Metallurgica Sinica(English letters) ›› 2013, Vol. 20 ›› Issue (5): 37-44.doi: 10.1016/S1005-8885(13)60087-4

• Networks • 上一篇    下一篇

Node correlation clustering algorithm for wireless multimedia sensor networks based on overlapped FoVs

张乾燕   

  1. 1. Department of Computer Science and Technology, Suqian College, Suqian 223800, China 2. College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2012-08-02 修回日期:2012-09-16 出版日期:2013-10-30 发布日期:2013-10-29
  • 通讯作者: 张乾燕 E-mail:51597049@qq.com
  • 基金资助:
    The work was supported by the National Natural Science Foundation of China (60973139, 61170065, 61171053, 61003039, 61003236, 61103195), the Natural Science Foundation of Jiangsu Province (BK2011755).

Node correlation clustering algorithm for wireless multimedia sensor networks based on overlapped FoVs

Qian-Yan ZHANG   

  1. 1. Department of Computer Science and Technology, Suqian College, Suqian 223800, China 2. College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2012-08-02 Revised:2012-09-16 Online:2013-10-30 Published:2013-10-29
  • Contact: Qian-Yan ZHANG E-mail:51597049@qq.com
  • Supported by:
    The work was supported by the National Natural Science Foundation of China (60973139, 61170065, 61171053, 61003039, 61003236, 61103195), the Natural Science Foundation of Jiangsu Province (BK2011755).

摘要:

In this paper, a clustering algorithm is proposed based on the high correlation among the overlapped field of views for the wireless multimedia sensor networks. Firstly, by calculating the area of the overlapped field of views (FoVs) based on the gird method, node correlations have been obtained. Then, the algorithm utilizes the node correlations to partition the network region in which there are high correlation multimedia sensor nodes. Meanwhile, in order to minimize the energy consumption for transmitting images, the strategy of the cluster heads election is proposed based on the cost estimation, which consists of signal strength and residual energy as well as the node correlation. Simulation results show that the proposed algorithm can balance the energy consumption and extend the network lifetime effectively.

关键词:

wireless multimedia sensor networks, overlapped FoVs, node correlation, clustering

Abstract:

In this paper, a clustering algorithm is proposed based on the high correlation among the overlapped field of views for the wireless multimedia sensor networks. Firstly, by calculating the area of the overlapped field of views (FoVs) based on the gird method, node correlations have been obtained. Then, the algorithm utilizes the node correlations to partition the network region in which there are high correlation multimedia sensor nodes. Meanwhile, in order to minimize the energy consumption for transmitting images, the strategy of the cluster heads election is proposed based on the cost estimation, which consists of signal strength and residual energy as well as the node correlation. Simulation results show that the proposed algorithm can balance the energy consumption and extend the network lifetime effectively.

Key words:

wireless multimedia sensor networks, overlapped FoVs, node correlation, clustering