24-02-2009, 01:28 AM
The interplanetary network (IPN) is a group of spacecrafts equipped with gamma-ray burst detectors used to localize Gamma ray bursts (GRB). In the past other spacecraft that contributed to the IPN such as the interplanetary... The InterPlanetary Internet, as presently conceived, is a set of floating nodes in space which can communicate with each other. Because of the large speed of light delays involved with interplanetary distances, the IPN needs a new set of protocols and technology that are tolerant to large delays. The objective of the Interplanetary Internet project is to define the architecture and protocols necessary to permit interoperation of the Internet resident on Earth with other remotely located internets resident on other planets or spacecraft in transit. While the Earth's Internet is basically a 'network of connected networks', the Interplanetary Internet may therefore be thought of as a 'network of disconnected Internets'. Inter-working in this environment will require new techniques to be developed. It is also anticipated that the architecture and protocols developed by this project will be useful in many terrestrial environments in which a dependence on real-time interactive communication is either unfeasible or inadvisable. The IPNSIG exists to allow public participation in the evolution of the Interplanetary Internet. The technical research into how the Earth's Internet may be extended into interplanetary space has been underway for several years as part of an international communications standardization body known as the Consultative Committee for Space Data Systems. The NASA Study Team will also enable simulated and actual opportunities to test protocols and the use of Internet techniques in the space environment
elays:- Scheduling, queuing delay and require special equipments.