Terahertz User-Centric Clustering in the Presence of Beam Misalignment
IEEE Transactions on Vehicular Technology(2024)
Abstract
Beam misalignment is one of the main challenges for the design of reliable
wireless systems in terahertz (THz) bands. This paper investigates how to apply
user-centric base station (BS) clustering as a valuable add-on in THz networks.
In particular, to reduce the impact of beam misalignment, a user-centric BS
clustering design that provides multi-connectivity via BS cooperation is
investigated. The coverage probability is derived by leveraging an accurate
approximation of the aggregate interference distribution that captures the
effect of beam misalignment and THz fading. The numerical results reveal the
impact of beam misalignment with respect to crucial link parameters, such as
the transmitter's beam width and the serving cluster size, demonstrating that
user-centric BS clustering is a promising enabler of THz networks.
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Key words
User-centric clustering,Terahertz,system coverage,beam misalignment,BS cooperation,stochastic geometry
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