Spectrum sharing has long been considered as method to improve spectrum resource utilization. Centralized geolocation database approach has been accepted globally for commercial applications. Recently blockchain has been considered as a platform to support spectrum sharing in a distributed manner. Like other commodities, spectrum or right of spectrum usage can be exchanged through blockchain. However, this leads to changes of the location where a particular frequency channel is utilized which brings potential interference. In this paper, we present the interference based consensus and smart contract for blockchain based spectrum sharing. We will also introduce the other aspects of blockchain such as cross train transaction, cross tier spectrum coordination and incentive mechanism that need to be studied for spectrum sharing applications.

翻译：长期以来，频谱共享一直被视为提高频谱资源利用率的方法。集中式地理数据库方法已在全球范围内被商业应用所接受。近期，区块链被视为一种支持分布式频谱共享的平台。与其他商品类似，频谱或频谱使用权可通过区块链进行交易。然而，这会导致特定频率信道使用位置发生变化，从而带来潜在的干扰问题。本文提出了一种基于干扰的共识机制和智能合约，用于实现基于区块链的频谱共享。我们还将介绍区块链的其他方面，例如跨链交易、跨层频谱协调以及激励机制，这些方面在频谱共享应用中仍需进一步研究。