A Comparison of Blockchain-Based Wireless Sensor Network Protocols

Abena Primo
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引用次数: 1

Abstract

Wireless sensors are often deployed in environments where it is difficult for them to discern friend from enemy. An example case is a military tactical scenario, where sensors are deployed to map the location of an item but where some of the nodes have been compromised or where there are other malicious nodes present. In this scenario, sharing data with other network nodes may present a critical security risk to the sensor nodes. Blockchain technology, with its ability to house a secure distributed ledger, offers a possible solution. However, blockchain applications for Wireless Sensor Networks suffer from poor latency in block propagation which in turn decreases throughput and network scalability. Several researchers have proposed solutions for improved network throughput. In this work, a comparison of these existing works is performed leading to a taxonomy of existing algorithms. Characteristics consistently found in algorithms reporting improved throughput are presented and, later, these characteristics are used in the development of a new algorithm for improving throughput. The proposed algorithm utilizes a proof-of- authority consensus algorithm with a node trust-based scheme. The proposed algorithm shows strong results over the base case algorithm and was evaluated with blockchain network simulations of up to 20000 nodes.
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基于区块链的无线传感器网络协议比较
无线传感器通常部署在难以分辨敌我的环境中。一个例子是军事战术场景,其中部署传感器来绘制物品的位置,但其中一些节点已被破坏或存在其他恶意节点。在这种情况下,与其他网络节点共享数据可能会给传感器节点带来严重的安全风险。区块链技术能够容纳一个安全的分布式账本,提供了一个可能的解决方案。然而,无线传感器网络的区块链应用在块传播中存在较差的延迟,这反过来又降低了吞吐量和网络可扩展性。一些研究人员提出了提高网络吞吐量的解决方案。在这项工作中,对这些现有工作进行比较,从而对现有算法进行分类。提出了在报告提高吞吐量的算法中一致发现的特征,随后,这些特征被用于开发提高吞吐量的新算法。该算法采用基于节点信任的权威证明一致性算法。所提出的算法比基本情况算法显示出强大的结果,并在多达20000个节点的区块链网络模拟中进行了评估。
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