04-07-2013, 04:44 PM
INTERPLANETARY INTERNET
INTERPLANETARY.pptx (Size: 243.76 KB / Downloads: 32)
Introduction
IPN is a conceived computer network in space, consisting of a set of network nodes which can communicate with each other.
IPN is a technical name for ”anywhere and everywhere internet”.
It is next to IPv6,IPTV,voice over IP, mobile IP and IP next generation(IPng).
It aims to provide Internet-like services over the entire solar system.
Challenges
Extremely long propagation delay
Asymmetrical forward and reverse Link
capacities
High link error rates for radio-frequency (RF) communication channels
Intermittent link connectivity
Lack of fixed communication infrastructure
Architecture
InterPlanetary Backbone Network
Communication among Earth, outer-space planets, moons, satellites, relay stations, etc.
InterPlanetary External Network
Space crafts flying in groups in deep space between planets, clusters of sensor nodes, and groups of space stations.
Working of IPN
IPN is considered to consist of a “network of Internets ” with a specialized deep space backbone network of long-haul wireless links interconnecting these local Internets.
In IPN, packets need to be transferred from end to end through disconnected multiple regions that tolerate variable delay.
A protocol of IPN will take care of these requirements by the concept of “bundling protocol suite.”
Bundling Protocol
The IPN architecture will be based on an overlay protocol called “bundling” that handles the complex environment of celestial communication.
It puts together a set of heterogeneous internets.
Bundles are arbitrarily long messages designed for end-to-end delivery between IPN nodes over distinct or identical transport layers.
Functions of Bundling Protocol
It operates in the message switching mode.
It operates in the custodial mode.
Tackle high error rate of the celestial link, hop-by-hop store-and-forward bundling with per-hop error control mechanism is used.
Identification of the sender and the receiver in the IPN using an addressing scheme having names in two parts.
Conclusion
With the increasing pace of space exploration, Earth will distribute large numbers of robotic vehicles, landers, and possibly even humans, to asteroids and other planets in the coming decades.
Possible future missions include lander/rover/orbiter sets, sample return missions, aircraft communicating with orbiters, and outposts of humans or computers remotely operating rovers.