This course covers the complexities of satellite communication protocols, with a focus on the physical layer's influence on higher layers, specifically the Internet Protocol (IP) and Transmission Control Protocol (TCP). It explores the characteristics of the satellite as a physical layer, including its long delay, error-prone nature, asymmetric channel bandwidth, and intermittent connections. The course also explains the functions of IP and TCP, emphasizing their roles in data delivery, integrity, and throughput. For example, it uses a satellite orbiting the moon to demonstrate the concept of intermittent connections. Additionally, the course delves into TCP window scaling and flow control, particularly in the context of satellite links with large Round Trip Time (RTT). It also introduces the Space Communication Protocol Standards-Transport Protocol (SCPS-TP) for space communication and discusses the intricacies of space data protocols, focusing on the modification of TCP for space systems.
This course has been developed by Prof. Kalyankumar Bandyopadhyay from IIT Kharagpur for NPTEL. It is now accessible through Ansys Innovation Space courtesy of the partnership between Ansys and NPTEL, under the CC BY-SA license. For more details, visit https://nptel.ac.in/courses/117105131.
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Cost: FREE
- Course Duration: 2-4 HOURS
- Skill Level: Intermediate
- Skills Gained: Understanding satellite communication protocols, physical layer characteristics, IP and TCP functions, TCP window scaling, flow control, space data protocols.
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