间歇性mmWave链路上的5G移动边缘计算弹性设计
Resilient Design of 5G Mobile-Edge Computing Over Intermittent mmWave Links
摘要：
第五代（5G）移动通信系统的两个推动因素是利用毫米波无线电信号可实现的高数据率以及网络移动边缘的云化，这也是通过多址边缘计算（MEC）实现的。在5G网络中，用户设备可以利用其移动连接的高容量和边缘云的计算能力来将计算任务卸载到MEC服务器，MEC服务器代表设备运行应用。本文研究了执行功率和延迟约束卸载的新方法。首先，为了最小化用户设备的发射功率，研究了利用设备和边缘云之间的并发通信链路的机会。同时传输的信道的最佳数量的特点是在一个确定性和概率的情况下。随后，阻塞毫米波通道，使其“间歇性”的阻塞事件被认为是。提出了资源预留和针对非对称块擦除的纠错码，以联合对抗阻塞和利用多链路通信的分集。非对称块擦除信道的特征在于其中断概率的研究。分析是在一个框架，产生封闭形式的表达式。这些，再加上佐证的数值结果，旨在提供参考点和界限，在实际应用中的最佳性能。
英文摘要：
Two enablers of the 5th Generation (5G) of mobile communication systems are the high data rates achievable with millimeter-wave radio signals and the cloudification of the network's mobile edge, made possible also by Multi-access Edge Computing (MEC). In 5G networks, user devices may exploit the high capacity of their mobile connection and the computing capabilities of the edge cloud to offload computational tasks to MEC servers, which run applications on devices' behalf. This paper investigates new methods to perform power- and latency-constrained offloading. First, aiming to minimize user devices' transmit power, the opportunity to exploit concurrent communication links between the device and the edge cloud is studied. The optimal number of channels for simultaneous transmission is characterized in a deterministic and a probabilistic scenario. Subsequently, blocking events that obstruct millimeter-wave channels making them `intermittent' are considered. Resource overprovisioning and error-correcting codes against asymmetric block erasures are proposed to jointly contrast blocking and exploit multi-link communications' diversity. The asymmetric block-erasure channel is characterized by a study of its outage probability. The analysis is performed in a framework that yields closed-form expressions. These, together with corroborating numerical results, are intended to provide reference points and bounds to optimal performance in practical applications.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
