Military could benefit from interplanetary WiFi.

• Author: Beidel, Eric
• Position: Defense Technology Newswire

New Internet protocols designed to link the planets could help troops communicate and exchange data in Earthbound environments where connectivity is weak.

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Google Vice President Vinton Cerf has been working with NASA and the Defense Advanced Research Projects Agency on protocols that can be used to create what he calls an "interplanetary Internet."

One of the fathers of the Internet who worked at DARPA back in the 1970s, Cerf has been working on this concept since 1998. He has tested the Delay and Disruption Tolerant protocols aboard spacecraft, marine vehicles and in the wilds of northern Sweden where reindeer herders opened their remote lands to scientists. There, the protocols were used on laptops aboard all-terrain vehicles traveling in and out of the villages.

Cerf installed WiFi service in the villages and had the ATVs wander from place to place, dumping and picking up data as they went. The tests were successful and a report on the results is due out soon, Cerf said at a recent Air Force Association forum on cybersecurity.

During experiments with Marine Corps troops, they first used the traditional Internet protocols on a convoy of tactical vehicles moving into an area where the network would he disrupted. When they lost connectivity, marines could no longer share data through instant messaging and other methods. But when they were armed with the new protocols, they were able to pull data into one vehicle when they lost a connection, store it and then use local communications to send it to other vehicles in the convoy. Network disruptions did not cause critical information to disappear; it simply was stored until a connection returned.

"We got three to five times more data through the system using these protocols," Cerf said.

But the main focus for the protocols has been in space. When scientists began work on their...