A dynamic and multi-level key management method in wireless sensor networks (WSNs)

Khah, Sahar Ahmadi; Barati, Ali; Barati, Hamid

doi:10.1016/j.comnet.2023.109997

Cited by 6 publications

(1 citation statement)

References 36 publications

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“…Generally, SLP techniques can be implemented in real-world scenarios for wireless sensor networks; however, they can present several key challenges. These include the complexity of key management in large dynamic networks [ 33 ], the delicate balance required between maintaining location accuracy essential for WSN applications and preserving source privacy [ 34 ], the added complexity of dynamic network topologies due to sensor mobility and potential failures [ 24 ], etc. Addressing these challenges necessitates advanced solutions that can effectively harmonize data accuracy, security, and adaptability.…”

Section: Introductionmentioning

confidence: 99%

A Total Randomized SLP-Preserving Technique with Improved Privacy and Lifetime in WSNs for IoT and the Impact of Radio Range on SLP

Mukamanzi,

Manjula,

Datta

et al. 2023

Sensors

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Enhanced source location privacy and prolonged network lifetime are imperative for WSNs—the skin of IoT. To address these issues, a novel technique named source location privacy with enhanced privacy and network lifetime (SLP-E) is proposed. It employs a reverse random walk followed by a walk on annular rings, to create divergent routing paths in the network, and finally, min-hop routing together with the walk on dynamic rings to send the packets to the base station (BS). The existing random walk-based SLP approaches have either focused on enhancing only privacy at the cost of network lifetime (NLT) or have aimed at improving the amount of privacy without degrading the network lifetime performance. Unlike these schemes, the objectives of the proposed work are to simultaneously improve the safety period and network lifetime along with achieving uniform privacy. This combination of improvements has not been considered so far in a single SLP random walk-based scheme. Additionally, this study investigates for the first time the impact of the sensors’ radio range on both privacy strength and network lifetime metrics in the context of SLP within WSNs. The performance measurements conducted using the proposed analytical models and the simulation results indicate an improvement in the safety period and network lifespan. The safety period in SLP-E increased by 26.5%, 97%, 123%, and 15.7% when compared with SLP-R, SRR, PRLPRW, and PSSLP techniques, respectively. Similarly, the network lifetime of SLP-E increased by 17.36%, 0.2%, 83.41%, and 13.42% when compared with SLP-R, SRR, PRLPRW, and PSSLP techniques, respectively. No matter where a source node is located within a network, the SLP-E provides uniform and improved privacy and network lifetime. Further, the simulation results demonstrate that the sensors’ radio range has an impact on the safety period, capture ratio, and the network lifetime.

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Section: Introductionmentioning

confidence: 99%