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Sensors 2018, 18(5), 1539; https://doi.org/10.3390/s18051539

A Key Pre-Distribution Scheme Based on µ-PBIBD for Enhancing Resilience in Wireless Sensor Networks

1
College of Computer Science and Technology, Harbin Engineering University, Harbin 150001, China
2
College of Communication and Electronic Engineering, Qiqihar University, Qiqihar 161006, China
3
College of Tourism, Guilin University of Technology, Guilin 541004, China
4
College of Data Science and Technology, Heilongjiang University, Harbin 150080, China
*
Author to whom correspondence should be addressed.
Received: 5 March 2018 / Revised: 26 April 2018 / Accepted: 10 May 2018 / Published: 12 May 2018
(This article belongs to the Section Sensor Networks)
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Abstract

Many key pre-distribution (KPD) schemes based on combinatorial design were proposed for secure communication of wireless sensor networks (WSNs). Due to complexity of constructing the combinatorial design, it is infeasible to generate key rings using the corresponding combinatorial design in large scale deployment of WSNs. In this paper, we present a definition of new combinatorial design, termed “µ-partially balanced incomplete block design (µ-PBIBD)”, which is a refinement of partially balanced incomplete block design (PBIBD), and then describe a 2-D construction of µ-PBIBD which is mapped to KPD in WSNs. Our approach is of simple construction which provides a strong key connectivity and a poor network resilience. To improve the network resilience of KPD based on 2-D µ-PBIBD, we propose a KPD scheme based on 3-D Ex-µ-PBIBD which is a construction of µ-PBIBD from 2-D space to 3-D space. Ex-µ-PBIBD KPD scheme improves network scalability and resilience while has better key connectivity. Theoretical analysis and comparison with the related schemes show that key pre-distribution scheme based on Ex-µ-PBIBD provides high network resilience and better key scalability, while it achieves a trade-off between network resilience and network connectivity. View Full-Text
Keywords: wireless sensor networks; key pre-distribution; partially balanced incomplete block design; combinatorial design; resilience wireless sensor networks; key pre-distribution; partially balanced incomplete block design; combinatorial design; resilience
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Yuan, Q.; Ma, C.; Yu, H.; Bian, X. A Key Pre-Distribution Scheme Based on µ-PBIBD for Enhancing Resilience in Wireless Sensor Networks. Sensors 2018, 18, 1539.

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