Comparative Simulation of UAV, LEO, and Hybrid Connectivity for Rural Broadband under Rain Fade and Grid Instability
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更新:2026-11-10 16:46:19 浏览:16次
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摘要
Although rural Fibre connectivity often extends up to the Gram Panchayat, the last-mile connection may still be disrupted when the village electricity supply fails. Power, rain, and backhaul choice then decide whether users keep service. Surveys of rural connectivity stress that cost and energy constrain what can be deployed, while UAV-LEO emergency links and terrestrial-LEO hybrids Examine the relevant components of the study independently. What remains open is a side-by-side reading of three delivery modes under joint monsoon rain and intermittent power at a named Indian Gram-Panchayat-scale cell. On a 200 m disk in Uthiramerur, Network simulator 3.43 compares a hovering UAV Wi-Fi cell with terrestrial backhaul, one shared LEO bent pipe, and A hybrid approach that utilizes the UAV during periods of available power and switches to a battery-backed LEO link when power is unavailable. Rain at 0, 5, and 50 mm/h is crossed with 10 to 200 users and two power regimes, with ten seeds per cell (720 runs). Latency is one-way delay. At 10 users under stable power, the UAV and hybrid stay near 24.5 ms, while the LEO pipe is at 37.86 ms. The rain classes overlie one another at the offered load of 20 Mbps, so this cell does not measure Ku-band fade. When power supply is intermittent, the single-path system has a drop rate of 0.32 (95% interval: 0.20-0.44), which is consistent with a one-third power-off period. The hybrid system has no drops when a battery-backed fallback is available. A shared feeder was not tested. Under monsoon conditions with 50 users, the hybrid system achieved a throughput of 88.50 ± 2.85 Mbps, close to the predicted 88.7 Mbps. The LEO link reached a maximum throughput of about 100.98 Mbps
关键词
Rural broadband,UAV relay,LEO satellite,Rain attenuation,Power intermittency,Hybrid non-terrestrial network
稿件作者
MVRLN Karthik
Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya
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