A key-management scheme for distributed sensor networks
Proceedings of the 9th ACM conference on Computer and communications security
Random Key Predistribution Schemes for Sensor Networks
SP '03 Proceedings of the 2003 IEEE Symposium on Security and Privacy
Location-based pairwise key establishments for static sensor networks
Proceedings of the 1st ACM workshop on Security of ad hoc and sensor networks
Location-aware key management scheme for wireless sensor networks
Proceedings of the 2nd ACM workshop on Security of ad hoc and sensor networks
A key pre-distribution scheme using deployment knowledge for wireless sensor networks
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Defense against outside attacks in wireless sensor networks
Computer Communications
An Application-Oriented Framework for Wireless Sensor Network Key Establishment
Electronic Notes in Theoretical Computer Science (ENTCS)
Efficient Key Predistribution for Grid-Based Wireless Sensor Networks
ICITS '08 Proceedings of the 3rd international conference on Information Theoretic Security
Tree-based key predistribution for wireless sensor networks
Wireless Networks
On grid-based key pre-distribution: toward a better connectivity in wireless sensor network
PAKDD'07 Proceedings of the 2007 international conference on Emerging technologies in knowledge discovery and data mining
Framework design and performance analysis on pairwise key establishment
APNOMS'09 Proceedings of the 12th Asia-Pacific network operations and management conference on Management enabling the future internet for changing business and new computing services
A generic evaluation method for key management schemes in wireless sensor network
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
Symmetric Threshold Multipath (STM): An online symmetric key management scheme
Information Sciences: an International Journal
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Pairwise key establishment is a fundamental service provided in secure sensor networks. However, due to resource constraints, establishing pairwise keys is not a trivial task. Recently, a random key pre-distribution scheme and its improvements have been proposed. The scheme proposed by Du et al. uses deployment knowledge to improve the performance and security of sensor networks. However, this scheme assumes group-based deployment in which groups of nodes are deployed from horizontal grid points. This assumption limits applications of the scheme. Therefore, in this paper, we propose an advanced key pre-distribution scheme in which different keys are logically mapped to two-dimensional positions, and the keys that are distributed to a node are determined by positions estimated using a node probability density function. The scheme can be applied to any deployment model provided the node probability density function has already been determined. Furthermore, simulation results show that our scheme achieves higher connectivity than Du et al.'s scheme.