AUTHOR=Xia Minghua , Lai Edmund , Hu Jie , Liu Xuan , Thomos Nikolaos , Liu Zilong , Han Tao , Bohara Vivek A. , Sali Aduwati TITLE=Editorial: 5G-and-Beyond Communications for Smart Cities: Networks, Systems and Applications JOURNAL=Frontiers in Communications and Networks VOLUME=3 YEAR=2022 URL=https://www.frontiersin.org/journals/communications-and-networks/articles/10.3389/frcmn.2022.841742 DOI=10.3389/frcmn.2022.841742 ISSN=2673-530X