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A Novel OBDD-Based Reliability Evaluation Algorithm for Wireless Sensor Networks on the Multicast Model

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  • Zongshuai Yan
  • Chenhua Nie
  • Rongsheng Dong
  • Xi Gao
  • Jianming Liu

Abstract

The two-terminal reliability calculation for wireless sensor networks (WSNs) is a #P-hard problem. The reliability calculation of WSNs on the multicast model provides an even worse combinatorial explosion of node states with respect to the calculation of WSNs on the unicast model; many real WSNs require the multicast model to deliver information. This research first provides a formal definition for the WSN on the multicast model. Next, a symbolic OBDD_Multicast algorithm is proposed to evaluate the reliability of WSNs on the multicast model. Furthermore, our research on OBDD_Multicast construction avoids the problem of invalid expansion, which reduces the number of subnetworks by identifying the redundant paths of two adjacent nodes and s-t unconnected paths. Experiments show that the OBDD_Multicast both reduces the complexity of the WSN reliability analysis and has a lower running time than Xing’s OBDD- (ordered binary decision diagram-) based algorithm.

Suggested Citation

  • Zongshuai Yan & Chenhua Nie & Rongsheng Dong & Xi Gao & Jianming Liu, 2015. "A Novel OBDD-Based Reliability Evaluation Algorithm for Wireless Sensor Networks on the Multicast Model," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-14, March.
    • Handle: RePEc:hin:jnlmpe:269781
    DOI: 10.1155/2015/269781
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