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arXiv · 2604.14869

An Open-Source Hardware-Aware Sub-THz Radio-Stripe Simulator

Tijl Schepens·Thomas Feys·Thomas Eriksson·Gilles Callebaut
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Abstract

Sub-Terahertz radio-stripe and distributed MIMO architectures promise extreme spatial reuse and multi-GHz bandwidths, but the cascaded fiber front-haul and RF hardware impairments strongly shape end-to-end performance. This paper presents an open-source, configuration-driven simulator that models the full waveform-level signal chain from CP-OFDM baseband generation in the central unit, through measurement-parameterized polymer microwave fiber and coupler links, to booster/active Radio Units (RUs) with configurable nonlinearity, noise, in-phase and quadrature imbalance, and oscillator phase noise and carrier frequency offset. Wireless propagation is supported via lightweight deterministic and stochastic per-subcarrier channel models as well as site-specific ray-tracing datasets generated with a companion Sionna ray-tracer module. The simulator exports intermediate waveforms and system metrics (e.g., normalised mean square error, signal-to-noise-and-distortion ratio, bit error rate) to enable reproducible studies of impairment accumulation, calibration, and algorithmic choices such as RU selection and beam management.

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Tijl Schepens, Thomas Feys, Thomas Eriksson, Gilles Callebaut. 2026-04-16. An Open-Source Hardware-Aware Sub-THz Radio-Stripe Simulator. https://arxiv.org/abs/2604.14869

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