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Component evolution in a secure wireless sensor network
Author(s) -
Bloznelis M.,
Jaworski J.,
Rybarczyk K.
Publication year - 2009
Publication title -
networks
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.977
H-Index - 64
eISSN - 1097-0037
pISSN - 0028-3045
DOI - 10.1002/net.20256
Subject(s) - wireless sensor network , component (thermodynamics) , computer network , computer science , giant component , key (lock) , wireless network , key distribution in wireless sensor networks , wireless , set (abstract data type) , property (philosophy) , topology (electrical circuits) , distributed computing , random graph , theoretical computer science , mathematics , telecommunications , computer security , combinatorics , physics , graph , philosophy , epistemology , thermodynamics , programming language
We study a connectivity property of a secure wireless network that uses random pre‐distribution of keys. A network is composed of n sensors. Each sensor is assigned a collection of d different keys drawn uniformly at random from a given set of m keys. Two sensors are joined by a communication link if they share a common key. We show that for large n with high probability the connected component of size Ω( n ) emerges in the network when the probability of a link exceeds the threshold 1/ n . Similar component evolution is shown for networks where sensors communicate if they share at least s common keys. © 2008 Wiley Periodicals, Inc. NETWORKS, 2009

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