吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (4): 1118-1125.doi: 10.13229/j.cnki.jdxbgxb201404033

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Improved data aggregation algorithm based on clustered wireless sensor network

FU Shuai1, MA Jian-feng1, LI Hong-tao1, WANG Chang-guang2   

  1. 1.School of Computer Science and Technology, Xidian University, Xi'an 710071, China;
    2.College of Information Technical, Hebei Normal University, Shijiazhuang 050024, China
  • Received:2013-02-01 Online:2014-07-01 Published:2014-07-01

Abstract: In order to effectively prolong the lifetime of cluster-based Wireless Sensor Networks (WSNs), an improved Energy-Efficient Separation Algorithm (EESA) is proposed to solve the uneven energy dissipation problem. On the basis of inter-cluster energy balance, the basic clustering algorithm is improved. EESA uses network topology and energy consumption to calculate q cluster radius. The selection strategy of cluster heads is modified from the perspective of task separation, in which the task of a single cluster head is assigned to two nodes to obtain the intra-cluster energy balance. Simulation results show that EESA can avoid the energy hole problem effectively and reduce energy consumption of the whole WSN, thus prolonging the network lifetime.

Key words: computer system organization, wireless sensor network, clustering, energy balance

CLC Number: 

  • TP393
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