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[转载]【电信学】【2019.03】5G异构网络中的移动性管理

已有 153 次阅读 2020-11-24 16:52 |系统分类:科研笔记|文章来源:转载

本文为澳大利亚埃迪斯科文大学(作者:Mohammad Arifin Rahman Khan)的硕士论文,共91页。

 

近年来,由于智能手机、平板电脑和笔记本电脑等便携式设备的普及,移动数据流量呈指数级增长。这种增长给致力于为消费者群体提供最佳服务质量的网络服务提供商带来了巨大压力。因此,电信工程师正在研究创新的解决方案,以适应越来越多移动用户提供的额外负荷。第五代(5G)无线通信标准有望提供众多创新解决方案,以满足日益增长的消费群体的需求。因此,最终目标是实现几个关键的技术里程碑,包括高达1000倍的无线区域容量和大幅降低功耗。小区的大规模部署可能是5G的一个关键创新,它可以实现频繁的频率重用和更高的数据速率。然而,对于以车辆速度移动的节点来说,小区是一个主要的挑战。这是因为小小区的覆盖区域越小,会导致频繁的切换,从而导致低吞吐量和高延迟。本文提出了一种新的移动性管理技术,以减少5G异构网络中的切换次数。本文还研究了在以车辆速度移动的节点中适应低延迟应用的技术。

 

In recent years, mobile data traffic has increased exponentially as a result of widespread popularity and uptake of portable devices, such as smartphones, tablets and laptops. This growth has placed enormous stress on network service providers who are committed to offering the best quality of service to consumer groups. Consequently, telecommunication engineers are investigating innovative solutions to accommodate the additional load offered by growing numbers of mobile users. The fifth generation (5G) of wireless communication standard is expected to provide numerous innovative solutions to meet the growing demand of consumer groups. Accordingly the ultimate goal is to achieve several key technological milestones including up to 1000 times higher wireless area capacity and a significant cut in power consumption. Massive deployment of small cells is likely to be a key innovation in 5G, which enables frequent frequency reuse and higher data rates. Small cells, however, present a major challenge for nodes moving at vehicular speeds. This is because the smaller coverage areas of small cells result in frequent handover, which leads to lower throughput and longer delay. In this thesis, a new mobility management technique is introduced that reduces the number of handovers in a 5G heterogeneous network. This research also investigates techniques to accommodate low latency applications in nodes moving at vehicular speeds.

 

 

1.  引言

2.  项目背景与文献回顾

3.  一种新的5G异构网络切换管理方案

4.  降低时延敏感应用车辆通信的延时

5.  结论与展望


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