Research on Distributed Access Simulation of Large-Scale Multi-Source Terminals for 5G

Q3 Decision Sciences
Lihong Ge;Pengyu Zhang;Kaiwen Hou;Wei Ao;Lin Zhou;Yindong Li
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引用次数: 0

Abstract

Large-scale machine communication scenarios are faced with the characteristics of a large number of terminal devices, small communication packets and frequent transmissions. Traditional multiple access technology can't fully apply to these characteristics, so it needs to be improved and designed. In order to further improve the effect of distributed access strategy formulation of large-scale multi-source terminal for 5G, this paper proposes a distributed access technology for large-scale multi-source terminals for 5G. For distributed access scenarios, antenna units in the distributed system are scattered in the system, and each antenna unit keeps communication with the surrounding terminal equipment, which can expand the number of terminal devices randomly accessed in the same time slot. Then, taking advantage of this inherent advantage and the advantage of time-shifted pilot, this paper proposes a distributed random access scheme based on time-shifted pilot. Finally, through analysis and simulation, this paper proves that this scheme can effectively reduce the pilot collision probability of each antenna element and the average access delay in the system, which provides a technical reference for the subsequent distributed access of large-scale multi-source terminals.
面向 5G 的大规模多源终端分布式接入仿真研究
大规模机器通信场景面临着终端设备数量多、通信数据包小、传输频繁等特点。传统的多址接入技术无法完全适用于这些特点,因此需要对其进行改进和设计。为了进一步提高面向 5G 的大规模多源终端分布式接入策略制定的效果,本文提出了面向 5G 的大规模多源终端分布式接入技术。在分布式接入场景下,分布式系统中的天线单元分散在系统中,每个天线单元与周围的终端设备保持通信,可以扩大同一时隙内随机接入的终端设备数量。于是,本文利用这一先天优势和时移先导的优点,提出了一种基于时移先导的分布式随机接入方案。最后,本文通过分析和仿真证明,该方案能有效降低系统中各天线元的先导碰撞概率和平均接入时延,为后续大规模多源终端的分布式接入提供了技术参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of ICT Standardization
Journal of ICT Standardization Computer Science-Information Systems
CiteScore
2.20
自引率
0.00%
发文量
18
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