🛰️ Advanced Diploma
Satellite Communication

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Student: Advanced SatCom Student

ID: ADS20267799

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Level: 1

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14) The Future of Satellite Communication

🌐 Major Satellite Constellations (2024–2026)
STARLINK (SpaceX) ~7 000+ satellites (2026) · Ka/Ku bands · alt ~550 km · latency 20–40 ms Direct-to-cell partnership with T-Mobile · laser ISL for polar coverage ONEWEB (Eutelsat) ~640 satellites · Ku band · alt ~1 200 km · enterprise, backhaul, maritime, aviation Focused on B2B · LEO polar orbits · GEO+LEO integration IRIDIUM NEXT 66 satellites · L band · crosslinked mesh · global coverage including poles Emergency comms, maritime, aviation, IoT · military and first responders GEO FLEETS Intelsat, SES, Eutelsat, ViaSat, Inmarsat · broadcast TV, enterprise, maritime ViaSat-3, Jupiter-3 — HTS with hundreds of Gbps per satellite NAVIGATION (GNSS) GPS (USA) · Galileo (EU) · GLONASS (RU) · BeiDou (CN) · QZSS (JP) MEO orbits ~20 200 km · L1/L2/L5 frequencies · ns-level timing accuracy
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📖 Theory – 14) The Future of Satellite Communication

I. Direct-to-Device
• Smartphones talk directly to satellites.
• Starlink + T-Mobile, AST SpaceMobile.
• Emergency and rural coverage first.

II. 5G NTN
• Satellites integrated into 5G core.
• 3GPP Release 17, 18, 19.
• Roaming between terrestrial and satellite.

III. Optical Inter-Satellite Links
• Laser terminals — 100+ Gbps per link.
• No spectrum licence needed.
• Foundation for space-based internet backbone.

IV. Software-Defined Satellites
• Reprogrammable in orbit.
• New waveforms post-launch.
• Digital transparent processors.
• AI on board.

V. Quantum and Security
• Quantum key distribution.
• Post-quantum cryptography.
• Encryption at every layer.
• Space as a contested domain.

VI. Capstone Project
• Design a satellite communication system.
• Justify orbit, bands, link budget.
• Present the design with calculations.

🏆 Level 1

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🛰️ 0 MCQs
📝 0 essays 🧪 0 labs 🏅 0 badges

📝 Advanced Essay (AI-Marked)

Question:
Critically analyse the emerging trends shaping the future of satellite communication. Discuss direct-to-device, 5G NTN, optical inter-satellite links, software-defined satellites and quantum security, and evaluate the technical, commercial and geopolitical factors that will determine the field's trajectory.
📋 Rubric: Knowledge (30%) · Analysis (30%) · Literature (20%) · Structure (10%) · Originality (10%). 1500–2500 words.

📝 Practice MCQs (15)

Q1: How does Laser terminal differ from alternatives?

Q2: Why is Direct-to-device important?

Q3: Why is Software-defined satellite important?

Q4: How does Space domain awareness differ from alternatives?

Q5: Why is Digital transparent processor important?

Q6: What are the limitations of Space domain awareness?

Q7: What is Digital transparent processor?

Q8: What is LEO mega-constellation?

Q9: Why is Post-quantum crypto important?

Q10: Why is Space sustainability important?

Q11: How does Space sustainability differ from alternatives?

Q12: What are the limitations of Optical ISL?

Q13: Explain Software-defined satellite in satellite communication.

Q14: How does Direct-to-device differ from alternatives?

Q15: What is Direct-to-device?

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