GAO Zhipeng, CHEN Kan, QIU Xuesong, “Relay Node Placement with Base Stations in Wireless Sensor Networks Fault-Tolerant,” Chinese Journal of Electronics, vol. 23, no. 4, pp. 794-800, 2014,
Citation: GAO Zhipeng, CHEN Kan, QIU Xuesong, “Relay Node Placement with Base Stations in Wireless Sensor Networks Fault-Tolerant,” Chinese Journal of Electronics, vol. 23, no. 4, pp. 794-800, 2014,

Relay Node Placement with Base Stations in Wireless Sensor Networks Fault-Tolerant

Funds:  This work is supported by the National Natural Science Foundation of China (No.61272515, No.61121061), Beijing Higher Education Young Elite Teacher Project (No.YETP0474) and Ph.D. Programs Foundation of Ministry of Education of China (No.20110005110011)
  • Received Date: 2013-03-01
  • Rev Recd Date: 2013-07-01
  • Publish Date: 2014-10-05
  • It has been proposed to deploy relay nodes for the sake of prolonging Wireless sensor networks (WSN) lifetime, such that sensors transmit the sensed data to them which in turn delivers the data to base stations. For survivability requirements, relay placements which considers fault tolerant ability have been noticed and studied. While related works are limited or most existing works don't take factors such as fault tolerance, or base stations into account comprehensively in two tired WSN. We focus on fault tolerant relay node placement in two-tiered heterogeneous WSN with base stations. As far as we know, fault tolerance contains two fundamental aspects, for one is multi-coverage and the second is multi-path. It is a NP-hard problem and figure out an approximation, whose approximation ratio is enhanced to be (18+ε). While a sub-problem approximation is also described as supplementary. Experimental results verify that the number of relay nodes deployed by our algorithm is somewhat superior to existed relay node placement solutions.
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