Despite increase in deployment of BS, MNOs are still faced with the daunting challenge of providing adequate coverage and capacity in indoor environments. Furthermore, the trust-less environment in which MNOs operate makes it further challenging to achieve interoperability across carriers. Recently the concept of mOs has emerged as a promising solution through deployment of small cells. However, their success has been severely hampered by the absence of a framework for creating and managing business agreements between key stakeholders, i.e., MNOs and mOs. This article proposes a blockchain-enabled SDN approach for managing radio spectrum access between MNOs using smart contracts over small cell networks. Specifically, our solution uses a smart contract to validate transactions between MNOs. Simulation results show that our solution guarantees seamless handoff and high availability between different operators in contrast to a break in connectivity in the absence of an agreement.

中文翻译：

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支持区块链的多运营商小型蜂窝网络，适用于 5G 以外的系统


尽管基站部署有所增加，移动网络运营商仍然面临着在室内环境中提供足够覆盖和容量的艰巨挑战。此外，移动网络运营商的运营环境缺乏信任，这使得实现跨运营商的互操作性变得更加困难。最近，通过部署小型基站，mO 的概念已成为一种有前景的解决方案。然而，由于缺乏用于在关键利益相关者（即移动网络运营商和移动运营商）之间创建和管理业务协议的框架，它们的成功受到严重阻碍。本文提出了一种支持区块链的 SDN 方法，用于在小型蜂窝网络上使用智能合约来管理 MNO 之间的无线电频谱访问。具体来说，我们的解决方案使用智能合约来验证 MNO 之间的交易。仿真结果表明，我们的解决方案可保证不同运营商之间的无缝切换和高可用性，而不是在没有达成协议的情况下中断连接。