Satellite Internet: Significance, Scope & Challenges

• As of April–June 2025, India boasts ~1,003 million internet subscribers, reflecting the scale of its digital expansion. However, rural internet penetration stands at ~46 subscribers per 100 population, highlighting the need for satellite internet to bridge the digital divide.

What is Satellite Internet?

• Satellite Internet is a wireless broadband service that provides internet connectivity via satellites orbiting the Earth, bypassing traditional terrestrial infrastructure like cables or fiber optics.
• It operates through constellations of Low Earth Orbit (LEO) satellites, which transmit signals to ground-based user terminals, ensuring access in remote, rural, and geographically challenging areas.
• Companies like SpaceX (Starlink), OneWeb, and others have pioneered this technology globally, while Jio and Airtel are working to bring similar services to India.

Working of Satellite Internet

• Satellite internet moves data between ground terminals, satellites, and existing internet networks.

• User antennas point toward satellites covering their geographic location.
• Ground terminals send requests to the assigned satellite in space. Satellites forward data to other satellites or a gateway station.
• Gateway stations connect the satellite network to land-based internet cables. These cables carry the request to the destination server’s location.
• The server’s response travels back through cables to the gateway station. The gateway sends the response up to the satellite in orbit.
• The satellite beams the response down to the requesting ground terminal.

Advantages of Satellite Internet

• Remote Coverage: Reaches polar stations, deep-sea vessels, and isolated expeditions.
• Disaster Continuity: Functions during disasters when ground networks are damaged or destroyed.
• Security Autonomy: Bypasses reliance on foreign terrestrial infrastructure, enhancing sovereignty.
• Rapid Scaling: Adds capacity quickly through satellite launches without ground infrastructure delays.
• Direct Device: Allows smartphones to access satellites without specialised terminal equipment.

Barriers Facing Implementation

• Latency Issue: GEO and MEO orbits introduce delays, reducing real-time communication quality.
• Capacity Limit: Limited bandwidth restricts high-volume activities such as video streaming.
• Weather Disruption: Rain or snow weakens signals, lowering overall connection reliability.
• Cost Barrier: High equipment and subscription costs hinder rural user adoption.
• Signal Blockage: Terrain or buildings may obstruct the required line-of-sight satellite signal paths.
• Debris Risk: Large constellations increase collision probability and generate hazardous space debris.

India’s Regulatory Landscape for Satellite Internet

• The Department of Telecommunications (DoT) regulates satellite communication under the Unified License Regime, authorising services such as VSAT, GMPCS, and other satellite-based networks to extend connectivity to remote areas.
• In May 2025, Telecom Regulatory Authority of India (TRAI) recommended a 5-year spectrum assignment for satellite communications, extendable based on market conditions, ensuring flexible and efficient spectrum utilisation.
• Indian National Space Promotion & Authorisation Centre (IN-SPACe) acts as an interface between ISRO and private players, facilitating participation of Non-Government Entities (NGEs) across the space value chain.
• New Space India Limited (NSIL) is currently operating 15 in-orbit communication satellites and providing space-based communication services to various Indian users.

Satellite Communication Spectrum

Difference Between Satellites in Different Orbits

• Driven by the need for lower latency, higher bandwidth, and more reliable coverage across remote and unserved regions, India is reimagining its satellite internet landscape from GEO (Geostationary Earth Orbit) satellites to LEO (Low Earth Orbit) and MEO (Medium Earth Orbit) systems. This transition will deliver faster and more reliable internet connectivity nationwide.

Way Forward

• India must subsidise user terminals through public-private partnerships (PPP), targeting rural and low-income groups.
• A robust regulatory framework, balancing innovation with oversight, should mandate local data storage and partnerships (e.g., 26% Indian equity in foreign ventures).
• Leveraging ISRO’s capabilities for indigenous satellite internet can reduce dependency, enhancing self-reliance in the field.
• By addressing the barriers strategically, India can integrate satellite internet equitably and securely, realising its promise as a new frontier in connectivity

Satellite internet holds transformative potential for India, offering universal coverage, high-speed connectivity, and resilience, with a vast scope to bridge the digital divide and support emerging technologies. Its expansion is bolstered by global partnerships and policy support, aligning with India’s digital and economic ambitions. However, affordability remains a critical barrier, with hardware costs out of reach for most rural users.

Reference: Deccan Herald

PMF IAS Pathfinder for Mains – Question 128

Q. Write a short note on Satellite Internet. Assess its key advantages and scope for expansion, and give an account of barriers facing its implementation. (15 Marks) (250 Words)

Approach

• Introduction: Define satellite internet, its relevance to India, and a statement previewing advantages, scope, and barriers.
• Body: Write a short Note on Satellite Internet, detailing its key advantages, scope for expansion and barriers to implementation.
• Conclusion: Summarise findings and suggest a way forward.