Delay Tolerant Networks PPT PDF Seminar & Presentation
Consider a scientist who is responsible for the operation of robotic meteorological station located on the planet Mars. The weather station is one of several dozen instrument platforms that communicate among themselves via a wireless local area network deployed on the Martian surface.
The scientist wants to upgrade the software in the weather station‟s data management computer by installing and dynamically loading a large new module. The module must be transmitted first from the scientist‟s workstation to a deep space antenna complex, then form the antenna complex to a constellation of relay satellites in low Mars orbit (no one of which is visible from Earth ling enough on any single orbit to receive the entire module), and finally from the relay satellites to the weather station.
The first leg of this journey would typically be completed using the TCP/IP protocol suite over the Internet, where electronic communication is generally characterized by:
Relatively small signal propagation latencies (on the order of milliseconds)
Relatively high data rates (up to 40 Gb/s for OC-768 service)
Bidirectional communication on each connection
Continuous end-to-end connectivity
On-demand network access with high potential for congestion
Download report on Delay Tolerant Networks from the attachment below