Cellular networks with device-to-device (D2D) links are increasingly being explored for mission-critical industrial applications which require predictable communication reliability. With interference being a major source of packet loss, it is thus critical to control interference among concurrent transmissions in a predictable manner to ensure the required communication reliability. To this end, we propose a Unified Cellular Scheduling (UCS) framework that, based on the Physical-Ratio-K (PRK) interference model, schedules uplink, downlink, and D2D transmissions in a unified manner to ensure predictable communication reliability while maximizing channel spatial reuse. UCS also provides a simple, effective approach to mode selection that maximizes the communication capacity for each involved communication pair. UCS effectively uses multiple channels for high throughput as well as resilience to channel fading and external interference. Leveraging the availability of base stations (BSes) as well as high-speed, out-of-band connectivity between BSes, UCS effectively orchestrates the functionalities of BSes and user equipment (UE) for light-weight control signaling and ease of incremental deployment and integration with existing cellular standards. We have implemented UCS using the open-source, standards-compliant cellular networking platform OpenAirInterface, and we have validated the UCS design and implementation using the USRP B210 software-defined radios in the ORBIT wireless testbed. We have also evaluated UCS through high-fidelity, at-scale simulation studies; we observe that UCS ensures predictable communication reliability while achieving a higher channel spatial reuse rate than existing mechanisms, and that the distributed UCS framework enables a channel spatial reuse rate statistically equal to that in the state-of-the-art centralized scheduling algorithm iOrder.

具有设备到设备（D2D）链接的蜂窝网络正在越来越多地用于要求关键通信可靠性的关键任务工业应用。由于干扰是丢包的主要来源，因此至关重要的是以可预测的方式控制并发传输之间的干扰，以确保所需的通信可靠性。为此，我们提出了一个统一的蜂窝调度（UCS）框架，该框架基于物理比率K（PRK）干扰模型，以统一的方式调度上行，下行和D2D传输，以确保可预测的通信可靠性，同时最大化信道空间重用。UCS还提供了一种简单有效的模式选择方法，该方法可以最大化每个相关通信对的通信容量。UCS有效地使用多个信道来实现高吞吐量，并具有抵抗信道衰落和外部干扰的能力。利用基站（BS）的可用性以及BS之间的高速，带外连接，UCS有效地协调了BS和用户设备（UE）的功能，以实现轻量级控制信令并简化增量部署和部署。与现有蜂窝标准集成。我们已经使用符合标准的开源蜂窝网络平台OpenAirInterface实施了UCS，并且已经在ORBIT无线测试台中使用USRP B210软件定义的无线电验证了UCS的设计和实施。我们还通过高保真，大规模仿真研究评估了UCS；