Multi-Dimensional Spatial Reuse Enhancement for Directional Millimeter-Wave Wireless Networks
| العنوان: | Multi-Dimensional Spatial Reuse Enhancement for Directional Millimeter-Wave Wireless Networks |
|---|---|
| المؤلفون: | Huadong Ma, Anfu Zhou, Dongzhu Xu, Yi Yang, Teng Wei, Jianhua Liu, Kun Liang |
| المصدر: | IEEE Transactions on Mobile Computing. 21:4439-4455 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Computer Networks and Communications, Computer science, Wireless network, Distributed computing, Testbed, Extremely high frequency, Graph (abstract data type), Network performance, Electrical and Electronic Engineering, Reuse, Interference (wave propagation), Software, Scheduling (computing) |
| الوصف: | Millimeter wave (mmWave) wireless networks are envisioned to bring a very high degree of spatial reuse, i.e., multiple links can operate simultaneously without interference. The vision, however, is becoming doubtful, as recent studies found that non-negligible interference exists due to imperfect beam patterns. In this paper, we extensively measure the spatial reuse issue in a dense 60 GHz mmWave network consisting of multiple access points (AP) and users. Our measurement quantifies the impact of interference on network performance and finds that the existing prediction based on interference-resolving approaches are insufficient. Motivated by the findings, we propose MDSR, which enhances the spatial reuse in 60 GHz mmWave networks. Instead of relying on interference prediction, MDSR takes a new measurement principle of building a conflict graph that implicitly takes into account the impact of both beam imperfection and reflections. Using the conflict graph, MDSR improves the spatial reuse from three dimensions: AP association, user scheduling, and beam selection, which can determine the optimal AP-user-beam combination and minimize interference in each scheduling cycle. We prototype and evaluate MDSR on the testbed using commodity mmWave radios. The evaluation results demonstrate that MDSR improves network throughput by multi-folds compared with the state-of-the-art one. |
| تدمد: | 2161-9875 1536-1233 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::50957bba0f91a7c2f5c3e38fa6e32c55Test https://doi.org/10.1109/tmc.2021.3082209Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........50957bba0f91a7c2f5c3e38fa6e32c55 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21619875 15361233 |
|---|