发表机构
National Mobile Communications Research Laboratory, Southeast University（东南大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
针对O-RAN中跨运营商调度缺乏信任的问题，提出基于区块链的比例公平调度（BC-PFS），通过智能合约实现可信协作与资源池化，并理论推导及仿真验证其性能。
AI 中文摘要
开放无线接入网（O-RAN）的开放性和解耦性促进了跨网络的资源共享与协调，产生了对高效且可信的跨运营商调度的新需求。然而，这种调度超出了传统比例公平调度（PFS）的范围和能力，因为后者缺乏在独立运营商之间建立信任的机制。为弥补这一不足，我们提出了基于区块链的比例公平调度（BC-PFS），该方案能够在O-RAN中实现跨网络的可信协调以及跨运营商的资源池化。具体而言，我们设计了四个核心智能合约，包括注册、状态报告、调度和结算合约，并提供了相应的Solidity实现，以确保链上执行的可信性。在理论上，为评估BC-PFS的性能，我们开发了一个分析框架，通过概率方法和常微分方程（ODE）方法推导用户平均吞吐量，并给出了一个简化的闭式解。基于上述性能评估，我们量化了通过BC-PFS实现的可信跨运营商协作在O-RAN中所带来的池化效应，并指出该效应随运营商网络数量和用户数量的增加而单调增长。仿真结果验证了理论分析，并展示了BC-PFS在O-RAN中的性能。
英文摘要
The openness and disaggregation of Open radio access network (O-RAN) facilitate resource sharing and coordination across networks, creating new demands for efficient and trustworthy cross-operator scheduling. However, such scheduling is beyond the scope and capability of conventional proportional fair scheduling (PFS), which lacks mechanisms for establishing trust among independent operators. To fulfill this gap, we propose the blockchain-based proportional fair scheduling (BC-PFS) that enables trustworthy inter-network coordination and resource pooling across operators in O-RAN. Specifically, we design four core smart contracts including registration, status reporting, scheduling, and settlement contracts with corresponding Solidity implementations to ensure trustworthy on-chain execution. Theoretically, to evaluate the BC-PFS performance, we develop an analytical framework to derive the user average throughput via both probabilistic and ordinary differential equation (ODE) approaches, and provide a simplified closed-form solution. Based on the above performance assessment, we quantify the pooling effect in O-RAN achieved through trustworthy cross-operator collaboration via BC-PFS, and point out that this effect grows monotonically in both the numbers of operator networks and users. Simulations validate the theoretical analysis and show the performance of the BC-PFS in O-RAN.
