{"ID":2876487,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2509.00492","arxiv_id":"2509.00492","title":"Distributed Deployment and Dual-Frequency Concepts to Strengthen Sub-THz Wireless Systems","abstract":"The vast bandwidth available at sub-THz frequencies holds great promise for high-speed wireless access, precise localization, and advanced sensing applications. However, fundamental physical constraints and technological limitations make the deployment of reliable sub-THz networks challenging. We propose a new paradigm for sub-THz coverage by transmitting the RF signals over polymer microwave fibers (PMFs) that interconnect low-complexity radio units (RUs) in a daisy-chain configuration. The distributed architecture ensures that user equipments (UEs) connect to RUs in their proximity, reducing path loss and mitigating blocking. The RUs leverage low-complexity, compact integrated antenna modules. Additionally, dual-frequency tandem operation is proposed, integrating the sub-THz system with a sub-10 GHz system that provides control signalling and a robust fallback solution for the sub-THz system. This proposed tandem architecture can open up the full potential of sub-THz technology and paves the way to cost- and energy-efficient, high-performance, real-time connectivity in dynamic environments.","short_abstract":"The vast bandwidth available at sub-THz frequencies holds great promise for high-speed wireless access, precise localization, and advanced sensing applications. However, fundamental physical constraints and technological limitations make the deployment of reliable sub-THz networks challenging. We propose a new paradigm...","url_abs":"https://arxiv.org/abs/2509.00492","url_pdf":"https://arxiv.org/pdf/2509.00492v1","authors":"[\"Liesbet Van der Perre\",\"Gilles Callebaut\",\"Thomas Eriksson\",\"Muris Sarajlic\",\"Christian Fager\",\"Fredrik Tufvesson\",\"Buon Kiong Lau\",\"Erik G. Larsson\"]","published":"2025-08-30T13:31:48Z","proceeding":"eess.SP","tasks":"[\"eess.SP\"]","methods":"[]","has_code":false}