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Relay node placement in two-tiered wireless sensor networks with base stations

Author

Listed:
  • Guangting Chen

    (Hangzhou Dianzi University)

  • Suhui Cui

    (Hangzhou Dianzi University)

Abstract

This paper addresses the relay node placement problem in two-tiered wireless sensor networks with base stations, which aims to deploy a minimum number of relay nodes to achieve certain coverage and connectivity requirement. Under the assumption that the communication range of the sensor nodes is no more than that of the relay node, we present a polynomial time (5+ϵ)-approximation algorithm for the 1-coverage 1-connected problem. Furthermore, we consider the fault tolerant problem in the network, we present a polynomial time (20+ϵ)-approximation algorithm for the 2-coverage 2-connected problem, where ϵ is any given positive constant. For the k-coverage 2-connected situation, we present a polynomial time (15k−10+ϵ)-approximation algorithm.

Suggested Citation

  • Guangting Chen & Suhui Cui, 2013. "Relay node placement in two-tiered wireless sensor networks with base stations," Journal of Combinatorial Optimization, Springer, vol. 26(3), pages 499-508, October.
    • Handle: RePEc:spr:jcomop:v:26:y:2013:i:3:d:10.1007_s10878-012-9451-5
    DOI: 10.1007/s10878-012-9451-5
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    Cited by:

    1. Jing Gao & Jianzhong Li & Yingshu Li, 2016. "Approximate event detection over multi-modal sensing data," Journal of Combinatorial Optimization, Springer, vol. 32(4), pages 1002-1016, November.
    2. Yan Zhang & Hongzhi Wang & Hong Gao & Jianzhong Li, 2016. "Efficient accuracy evaluation for multi-modal sensed data," Journal of Combinatorial Optimization, Springer, vol. 32(4), pages 1068-1088, November.
    3. Ran Bi & Jianzhong Li & Hong Gao & Yingshu Li, 2016. "$$(\alpha , \tau )$$ ( α , τ ) -Monitoring for event detection in wireless sensor networks," Journal of Combinatorial Optimization, Springer, vol. 32(4), pages 985-1001, November.

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