5G is the fifth generation wireless network, with a set of characteristics, e.g., high bandwidth and data rates. The scenarios of using 5G include enhanced Mobile Broadband (eMBB), massive Machine Type Communications (mMTC), and ultra-Reliable and Low-Latency Communications (uRLLC). 5G is expected to support a wide variety of applications. We conducted a systematic mapping study that covers the literature published between Jan 2012 and Dec 2019 regarding using 5G in smart cities. The scenarios, architecture, technologies, challenges, and lessons learned of using 5G in smart cities are summarized and further analyzed based on 32 selected studies, and the results are that: (1) The studies are distributed over 27 publication venues. 17 studies report results based on academic studies and 13 studies use demonstration or toy examples. Only 2 studies report using 5G in smart cities based on industrial studies. 16 studies include assumptions of 5G network design or smart city scenarios. (2) The most discussed smart city scenario is transportation, followed by public safety, healthcare, city tourism, entertainment, and education. (3) 28 studies propose and/or discuss the architecture of 5G-enabled smart cities, containing smart city architecture (treating 5G as a component), 5G network architecture in smart cities, and business architecture of using 5G in smart cities. (4) The most mentioned 5G-related technologies are radio access technologies, network slicing, and edge computing. (5) Challenges are mainly about complex context, challenging requirements, and network development of using 5G in smart cities. (6) Most of the lessons learned identified are benefits regarding 5G itself or the proposed 5G-related methods in smart cities. This work provides a reflection of the past eight years of the state of the art on using 5G in smart cities, which can benefit both researchers and practitioners.
翻译:5G是第五代无线网络,具有一系列特点,例如高带宽度和数据率。使用5G的情景、架构、技术、挑战和经验教训,包括强化移动宽带、大规模机器型通信(MMBB)、超可靠和低 Lawn-Lative通信(URLLC),预计5G将支持多种应用。我们开展了一项系统性的绘图研究,涵盖2012年1月至2019年12月期间在智能城市使用5G的文献。根据32项选定的研究,对智能城市使用5G的情景、结构、技术、挑战和经验教训进行了总结和进一步分析,结果如下:(1) 研究报告分布在27个出版场所分发。 17份研究报告基于学术研究的结果,13份研究报告使用演示或小巧的示例。 只有2份基于工业研究的智能城市使用5G的5G研究报告。 16项研究包括5G网络设计或智能城市情景假设。 讨论最多的智能城市的反思情景是交通,其次是公共安全、保健、城市相关旅游、娱乐和教育。 (3) 28项研究提议和/或讨论5G精准城市的5G网络结构结构结构,主要使用5G型城市的5G型智能网络,使用智能城市的智能结构。