articleIEEE Communications Surveys & TutorialsJan 1, 2024BRONZE OA

A Survey of Beam Management for mmWave and THz Communications Towards 6G

QXQing XueCJChengwang JiSMShaodan MaJGJiajia GuoYXYongjun Xu

Chongqing University of Posts and Telecommunications · University of Macau · +2 more institutions

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Abstract

Communication in millimeter wave (mmWave) and even terahertz (THz) frequency bands is ushering in a new era of wireless communications. Beam management, namely initial access and beam tracking, has been recognized as an essential technique to ensure robust mmWave/THz communications, especially for mobile scenarios. However, narrow beams at higher carrier frequency lead to huge beam measurement overhead, which has a negative impact on beam acquisition and tracking. In addition, the beam management process is further complicated by the fluctuation of mmWave/THz channels, the random movement patterns of users, and the dynamic changes in the environment. For mmWave and THz communications toward 6G, we have…

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192
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Authors

7

Topics & keywords

Topics
Keywords
  • Terahertz radiation
  • Wireless
  • Extremely high frequency
  • Overhead (engineering)
  • Beam (structure)
  • Computer science
  • Telecommunications
  • Tracking (education)
UN Sustainable Development Goals
  • Industry, innovation and infrastructure
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