论文标题
连接感知的合同，以激励复杂的无线区块链中的物联网设备
Connectivity-Aware Contract for Incentivizing IoT Devices in Complex Wireless Blockchain
论文作者
论文摘要
区块链被认为是未来6G网络中安全和值得信赖的物联网（IoT）的关键骨干技术。但是，由于资源有限，复杂的无线环境以及自我利益的IoT设备的属性，在复杂的无线IoT网络中部署区块链系统具有挑战性。区块链的现有激励机制与无线物联网网络不兼容。在本文中，为了激励物联网设备加入无线区块链网络的构建，我们提出了一份多维合同，以优化区块链实用程序，同时解决不利选择和道德风险的问题。具体而言，拟议的合同考虑了物联网设备的哈希功率和通信成本，尤其是从复杂网络理论的角度探索设备的连接。我们通过不同的网络大小和平均链路概率下的模拟研究了无线区块链网络的能耗和块确认概率。数值结果表明，我们提出的合同机制是可行的，与现有方法相比，实用性高35％，并且与原始的基于POW的激励机制相比，实用性增加了4倍。
Blockchain is considered the critical backbone technology for secure and trusted Internet of Things (IoT) in the future 6G network. However, deploying a blockchain system in a complex wireless IoT network is challenging due to the limited resources, complex wireless environment, and the property of self-interested IoT devices. The existing incentive mechanism of blockchain is not compatible with the wireless IoT network. In this paper, to incentivize IoT devices to join the construction of the wireless blockchain network, we propose a multi-dimensional contract to optimize the blockchain utility while addressing the issues of adverse selection and moral hazard. Specifically, the proposed contract considers the IoT device's hash power and communication cost and especially explores the connectivity of devices from the perspective of complex network theory. We investigate the energy consumption and the block confirmation probability of the wireless blockchain network via simulations under varied network sizes and average link probability. Numerical results demonstrate that our proposed contract mechanism is feasible, achieves 35% more utility than existing approaches, and increases utility by 4 times compared with the original PoW-based incentive mechanism.
