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Analyzing 5G NR-U and WiGig Coexistence with Multiple-Beam Directional LBT



Yao Ma, Susanna Mosleh, Jason Coder


The mmWave radio frequency (RF) spectrum allocations provide a large bandwidth and an excellent dynamic spectrum sharing (DSS) opportunity for emerging 5G New-Radio unlicensed (NR-U) and Wireless Gigabit (WiGig) services. To support constructive DSS, we outline a new modeling and analytical method to jointly evaluate the effects of a multiple-beam directional listen-before-talk (MB-DLBT) protocol, inter-cell interferences (ICIs), and spectrum sensing errors on the NR-U and WiGig DSS system performance. Available works did not provide a systematic and analytical approach to evaluate these effects, but only relied on computer simulations. Our numerical evaluation provides an insightful observation on the performance advantage of the MB-DLBT over the single-beam DLBT and omni-directional LBT schemes. This result provides a powerful tool to support performance analysis and optimization of mmWave DSS schemes.
Proceedings Title
IEEE Consumer Communications & Networking Conference
Conference Dates
January 8-11, 2022
Conference Location
Virtual Conference, NV, US
Conference Title
IEEE Consumer Communications & Networking Conference - Virtual Conference


Coexistence, directional LBT, imperfect spectrum sensing, intercell interference, mmWave, NR-U, WiGig.


Ma, Y. , Mosleh, S. and Coder, J. (2022), Analyzing 5G NR-U and WiGig Coexistence with Multiple-Beam Directional LBT, IEEE Consumer Communications & Networking Conference, Virtual Conference, NV, US, [online], (Accessed May 20, 2024)


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Created February 15, 2022, Updated November 29, 2022