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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.11351 |
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| _version_ | 1866917206601760768 |
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| author | Zheng, Ruifeng Zhou, Pengjie Hofmann, Pit Schottlender, Martín Rani, Fatima Cabrera, Juan A. Fitzek, Frank H. P. |
| author_facet | Zheng, Ruifeng Zhou, Pengjie Hofmann, Pit Schottlender, Martín Rani, Fatima Cabrera, Juan A. Fitzek, Frank H. P. |
| contents | This paper studies microfluidic molecular communication receivers with finite-capacity Langmuir adsorption driven by an effective surface concentration. In the reaction-limited regime, we derive a closed-form single-pulse response kernel and a symbol-rate recursion for on-off keying that explicitly exposes channel memory and inter-symbol interference. We further develop short-pulse and long-pulse approximations, revealing an interference asymmetry in the long-pulse regime due to saturation. To account for stochasticity, we adopt a finite-receptor binomial counting model, employ pulse-end sampling, and propose a low-complexity midpoint-threshold detector that reduces to a fixed threshold when interference is negligible. Numerical results corroborate the proposed characterization and quantify detection performance versus pulse and symbol durations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_11351 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Modulation, ISI, and Detection for Langmuir Adsorption-Based Microfluidic Molecular Communication Zheng, Ruifeng Zhou, Pengjie Hofmann, Pit Schottlender, Martín Rani, Fatima Cabrera, Juan A. Fitzek, Frank H. P. Signal Processing This paper studies microfluidic molecular communication receivers with finite-capacity Langmuir adsorption driven by an effective surface concentration. In the reaction-limited regime, we derive a closed-form single-pulse response kernel and a symbol-rate recursion for on-off keying that explicitly exposes channel memory and inter-symbol interference. We further develop short-pulse and long-pulse approximations, revealing an interference asymmetry in the long-pulse regime due to saturation. To account for stochasticity, we adopt a finite-receptor binomial counting model, employ pulse-end sampling, and propose a low-complexity midpoint-threshold detector that reduces to a fixed threshold when interference is negligible. Numerical results corroborate the proposed characterization and quantify detection performance versus pulse and symbol durations. |
| title | Modulation, ISI, and Detection for Langmuir Adsorption-Based Microfluidic Molecular Communication |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2601.11351 |