The high-speed satellite-terrestrial network (STN) is an indispensable alternative in future mobile communication systems. In this article, we first introduce the architecture and application scenarios of STNs, and then investigate possible ways to implement mobile edge computing (MEC) technique for QoS improvement in STNs. We propose satellite MEC (SMEC), in which a user equipment without a proximal MEC server can also enjoy MEC services via satellite links. We propose a dynamic network virtualization technique to integrate the network resources, and furtherly design a cooperative computation offloading (CCO) model to achieve parallel computation in STNs. Task scheduling models in SMEC are discussed in detail, and an elemental simulation is conducted to evaluate the performance of the proposed CCO model in SMEC.

中文翻译：

---

卫星移动边缘计算：使用边缘计算技术提高高速卫星地面网络的QoS

高速卫星地面网络（STN）是未来移动通信系统中必不可少的替代方案。在本文中，我们首先介绍STN的体系结构和应用场景，然后研究实现STN的QoS改善的移动边缘计算（MEC）技术的可能方法。我们提出了卫星MEC（SMEC），其中没有近端MEC服务器的用户设备也可以通过卫星链路享受MEC服务。我们提出了一种动态网络虚拟化技术来集成网络资源，并进一步设计了一种协作计算分流（CCO）模型来实现STN中的并行计算。详细讨论了SMEC中的任务调度模型，并进行了元素模拟以评估所提出的CCO模型在SMEC中的性能。