Multi-Frequency Channel Modeling for Millimeter Wave and THz Wireless Communication via Generative Adversarial Networks

Hu, Yaqi; Mingsheng, Yin,; Xia, William; Rangan, Sundeep; Mezzavilla, Marco

doi:10.48550/arxiv.2212.11858

Cited by 1 publication

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“…Current statistical models, such as those used by 3GPP [55], will also need to be extended. Large-scale statistical dependencies between multiple bands are not well modeled, and datadriven techniques, such as those recently proposed in [109] may be valuable.…”

Section: A Channel Measurements and Capacity Analysesmentioning

confidence: 99%

Cellular Wireless Networks in the Upper Mid-Band

Kang,

Mezzavilla,

Rangan

et al. 2024

IEEE Open J. Commun. Soc.

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The upper mid-band -approximately from 7 to 24 GHz -has recently attracted considerable interest for new cellular services. This frequency range has vastly more spectrum than the highly congested bands below 7 GHz while offering more favorable propagation and coverage than the millimeter wave (mmWave) frequencies. In this regard, the upper mid-band has the potential to provide a powerful and complementary frequency range that balances coverage and capacity. Realizing cellular networks that exploit the full range of these bands, however, presents significant technical challenges. Most importantly, spectrum will likely need to be shared with incumbents including communication satellites, military RADAR, and radio astronomy. Also, the upper mid-band is simply a vast frequency range. Due to this wide bandwidth, combined with the directional nature of transmission and intermittent occupancy of incumbents, cellular systems will likely need to be agile to sense and intelligently use large spatial and frequency degrees of freedom. This paper attempts to provide an initial assessment of the feasibility and potential gains of such adaptive wideband cellular systems operating across the upper mid-band. The study includes: (1) a detailed ray tracing simulation to assess potential gains of multi-band systems in a representative dense urban environment and illustrate the value of a wideband system with dynamic frequency selectivity; (2) an evaluation of potential cross-interference between satellites and terrestrial cellular services and interference nulling to reduce that interference; and (3) design and evaluation of a compact multi-band antenna array structure. Leveraging these preliminary results, we identify potential future research directions to realize next-generation systems in these frequencies.

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Section: A Channel Measurements and Capacity Analysesmentioning

confidence: 99%