1. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Technical Seminar Report On “Mobile Satellite Communication” under the guidance of Mr. G.V. Kiran Kumar submitted by SONALI MOHANTY EC200157141

2. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. INTRODUCTION Mobile Satellite system Constellation Characteristics and Orbital parameters Radio Link Design Communicators System Architecture

3. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Mobile Satellite Network

4. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Orbital Parameters Perigee X Y Z O Equatorial Plane Descending Node i Ω ω

5. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Satellite Location w.r.t. Orbital Plane System b Z0Z0 X0X0 Y0Y0 a r D Q (Satellite) C O B P υ E

6. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Satellite Constellation For constellation design High elevation angle. Low propagation delay. Low battery consumption. Inter- and intra- orbital interference in the proper limit. The no. of satellite being visible at any time within a coverage area.

7. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. RF Front end Carrier Processing Power Amplifier Diplexer Satellite Antenna Satellite Transponder

8. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Modulation PSK Minimum Shift Keying QAM Multiple Access FDMA TDMA CDMA

9. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Modulator Bank Up Converter High Power Amplifier Feed System Low Noise Amplifier Down Converter Splitt er Demodulator Bank Interface Base band Processing & control Tracking system Antenna Control Frequency Correction system Supporting System Frequency Correction To up- converter Public Network Other network Entities Gateway

10. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. System Architecture

11. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Network Procedure Satellite cells and satellite location area. Hand over management. Intra-FES handover. Inter-FES handover. Resource management

12. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. CONCLUSION Super GEO are in the development process. Non-geostationary satellites are in the route to provide services. Hybrid Constellation.

13. TECHNICAL SEMINAR PRESENTATION 2004 Presented by - Sonali Mohanty MOBILE SATELLITE COMMUNICATION. Thank you !!!