Using 5G in smart cities: A systematic mapping study

5G is the fifth generation wireless network, with a set of characteristics, such as high bandwidth and data rates, massive connectivity, broad coverage, low latency. The scenarios using include enhanced Mobile Broadband (eMBB), Machine Type Communications (mMTC), ultra-Reliable Low-Latency (uRLLC). expected to support wide variety applications, city management, healthcare, transportation, agriculture, energy management. In this paper, we conducted systematic mapping study that covers literature published between January 2012 December 2019 regarding in smart cities. scenarios, architecture, technologies, challenges, lessons learned cities are summarized further analyzed based on 32 selected studies, results that: (1) studies distributed over 27 publication venues. 17 report academic 13 use demonstration or toy examples. Only 2 industrial studies. 16 assumptions network design scenarios. (2) most discussed scenario followed by public safety, tourism, entertainment, education. (3) 28 propose and/or discuss architecture 5G-enabled cities, containing (treating component), business (4) mentioned 5G-related technologies radio access slicing, edge computing. (5) Challenges mainly about complex context, challenging requirements, development (6) Most identified benefits itself proposed methods This work provides reflection past eight years state art which can benefit both researchers practitioners field.