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首页> 外文期刊>Communications Magazine, IEEE >Computation Offloading for Multi-Access Mobile Edge Computing in Ultra-Dense Networks
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Computation Offloading for Multi-Access Mobile Edge Computing in Ultra-Dense Networks

机译:超密集网络中用于多路访问移动边缘计算的计算分流

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摘要

The ultra-dense network (UDN) is envisioned to be an enabling and highly promising technology to enhance spatial multiplexing and network capacity in future 5G networks. Moreover, to address the conflict between computation-intensive applications and resource-constrained IoT mobile devices (MDs), multi-access mobile edge computing (MA-MEC), which provides the IoT MDs with cloud capabilities at the edge of radio access networks, has been proposed. UDN and MA-MEC are regarded as two distinct but complementary enabling technologies for 5G IoT applications. Over the past several years, lots of research on mobile edge computation offloading (MECO) -- the key technique in MA-MEC -- has emerged. However, it is noticed that all these works focused on the single-tier base station scenario and computation offloading between the MD and the MEC server connected to the macro base station, and few works can be found on the problem of computation offloading for MA-MEC in UDN (i.e., a multi-user ultra-dense MEC server scenario). Toward this end, we study in this article the MECO problem in UDN and propose a heuristic greedy offloading scheme as our solution. Extensive numerical results and comparisons demonstrate the necessity for and superior performance of conducting computation offloading over multiple MEC servers.
机译:超密集网络(UDN)有望成为一种使能和高度有前途的技术,以增强未来5G网络中的空间复用和网络容量。此外,为了解决计算密集型应用程序和资源受限的IoT移动设备(MD)之间的冲突,多访问移动边缘计算(MA-MEC)为无线通信网络边缘的IoT MD提供了云功能,已经提出。 UDN和MA-MEC被视为针对5G IoT应用的两种截然不同但互补的使能技术。在过去的几年中,出现了许多关于移动边缘计算卸载(MECO)的研究,MECO是MA-MEC的关键技术。但是,应注意,所有这些工作都集中在单层基站方案以及MD和连接到宏基站的MEC服务器之间的计算分流上,关于MA-的计算分流问题很少能找到。 UDN中的MEC(即,多用户超密集MEC服务器方案)。为此,我们在本文中研究UDN中的MECO问题,并提出启发式贪心卸载方案作为我们的解决方案。大量的数值结果和比较结果证明了在多个MEC服务器上进行计算分载的必要性和优越的性能。

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