Conventional Cooperative spectrum sensing techniques either suffer from single point of failure attack or lack in providing incentives to users which makes them incompatible for Wireless Service Provider (WSP). We propose a dynamic spectrum access framework for WSP which gives prominence to automated sensing and sharing with the use of blockchain. In this system, the opportunity of spectrum access is first examined by sensor nodes and the access right is then allocated to the users when their transactions to WSP are authenticated in a decentralized manner. Apart from using blockchain as a reliable platform for automatic enforcement of spectrum sensing, we propose a novel mechanism for securing our network from the threats designed primarily for Cognitive Radio Networks. In addition to this, our proposed approach enhances the scalability of blockchain networks by using the sidechains for storing data and checkpointing it onto main chain after periodic intervals of time. Extensive simulations in Octave indicate superior performance offered by our proposed model.

传统的协作频谱感知技术要么遭受单点故障攻击，要么缺乏向用户提供激励，这使得它们与无线服务提供商 (WSP) 不兼容。我们为 WSP 提出了一个动态频谱访问框架，该框架突出了使用区块链的自动感知和共享。在该系统中，首先由传感器节点检查频谱访问的机会，然后当用户与 WSP 的交易以分散方式进行身份验证时，将访问权限分配给用户。除了使用区块链作为自动执行频谱感知的可靠平台外，我们还提出了一种新颖的机制来保护我们的网络免受主要为认知无线电网络设计的威胁。除此之外，我们提出的方法通过使用侧链存储数据并在周期性时间间隔后将其检查点到主链上，从而增强了区块链网络的可扩展性。Octave 中的广泛模拟表明我们提出的模型提供了卓越的性能。