What is satellite backhaul?
Satellite backhaul is the use of satellite communication links to connect a cellular base station to the mobile operator's core network. In areas where terrestrial fibre or microwave backhaul is unavailable — remote rural regions, island communities, conflict zones — satellite backhaul is the only practical option for mobile connectivity. A base station with satellite backhaul provides standard 2G, 3G, 4G, or 5G service to mobile phones within its coverage radius, with the satellite link invisibly carrying the traffic between the base station and the operator's core network.
Market scale and key players
Satellite backhaul serves hundreds of millions of mobile subscribers through base stations in sub-Saharan Africa, South and Southeast Asia, and Latin America. The largest providers include: SES with O3b mPOWER MEO satellites offering low-latency Ka-band backhaul; Eutelsat OneWeb targeting rural telecom operators as anchor customers; Intelsat providing GEO Ku and Ka backhaul across Africa and Asia; and Starlink, which is disrupting traditional satellite backhaul economics with its high-throughput, flat-panel terminal approach. African mobile operators including MTN and Airtel have deployed satellite-backhauled rural base station networks covering remote villages.
LEO vs. GEO for backhaul
Traditional GEO satellite backhaul introduced 500+ ms latency — acceptable for voice but problematic for modern LTE/5G applications. LEO satellite backhaul (Starlink, O3b mPOWER) reduces latency to 20–130 ms, enabling a much better user experience. The business case improves with LEO throughput: a single Starlink connection can serve a base station delivering 100+ Mbps to users — comparable to terrestrial microwave backhaul — making satellite economically competitive in many rural deployments where fibre construction costs exceed $50,000/km.