Google Launches "Project Loon"

In an effort to provide affordable Internet access in areas with little or no infrastructure, Google has begun lofting wireless Internet routing equipment into the air using balloons. Project lead Mike Cassidy acknowledges in a blog post that "the idea may sound a bit crazy" which in part is why Google chose the name "Project Loon".


Unlike Project Glass, another experiment from Google X, the company's lab for "moonshots", Project Loon isn't likely to invite derogatory wordplay along the lines of "glasshole". Its name immunizes it from ridicule and its goal has broader community value. "Balloon-powered internet sounds positively mad" said Richard DeVaul, Chief Technical Architect of Project Loon, in a video. "And in a way it is,but it's mad in a very practical way that could just work".



Indeed, military contractors like Arizona-based Space Data have already demonstrated that wireless communication links can be extended using balloons. Google has launched 30 balloons so far around Canterbury(New Zealand) as part of an effort to build a global ring of balloon-borne internet relay points in the stratosphere. The balloons travel around the globe, carried by the winds at speeds of around 5 to 20 mph and at a height of about 18 to 27 kilometres (11 to 17 miles or 60,000 to 90,000 feet), which is about twice the height that commercial airlines travel.

Because wind can blow in different directions at different altitudes, Google's engineers believe they can maintain fleets of balloons in specific areas through sophisticated software that directs the balloons to ascend or descend into air currents that will carry them back and forth within a general region. The balloons provide the equivalent of 3G service using the 2.4 GHz and 5.8 GHz ISM bands in an area that's roughly 40 kilometres in diameter. They also communicate with each other to maintain the positioning necessary to form a functioning network.



While 3G connectivity (3 Mbps more or less) is significantly less than the 1000 Mbps bandwidth available to Google Fiber subscribers, it's a huge improvement over the absence of any internet connectivity at all.

Source : InformationWeek


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