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17.06.05
Funksignal
"To understand the real world faced by a 2.4-GHz wireless signal, try to imagine that you are a wireless signal. You are five inches long, and you are about to Start on a 20-mile journey. Your journey will take you from an antenna on the roof of a ski lodge at the top of a 10,000-foot mountain down to an antenna on the roof of an office building. The office building is located 35 miles away, in the middle of a city in the desert at sea level. Your mission is to carry and to deliver a big (and important) data packet to a Computer inside the office building.
You are handed the data packet; then some powerful but invisible force roughly pushes you up to the antenna on the roof. As you reach the roof, the antenna suddenly spins your body around toward the city. The giant unseen force slams you out of the antenna and into the air. You feel strong, but you can't see the city and you have no way of steering yourself. Snow is falling, and you're freezing; the trees below you are covered in white. You hug the data packet tightly against your body. You know you are only five-inches long, but you can feel your chest slowly puffing out; you are expanding. You're getting wider and your skin is getting thinner. You feel yourself brush against the icy snow-covered treetops and some of your strength leaves you. You hug your data packet tighter as you fall. Down, down, down—your body keeps expanding, but now, as you expand, you feel the moisture in the icy air start to bend and warp you. You don't remember ever feeling this cold and swollen. You're weaker. Your chest is so big that you feel like you're about to burst. You suck in a breath but this time you don't feel that familiar icy pain in your nose. Have you gone numb? Then you realize that the air may be getting warmer. The foothills are below you. The snow is gone, but your body is now so big and so thin that it bumps against some of the foothills. You don't have much strength left and now it's getting hot. You grip the data packet as the hot, dry air starts to bend your body and wave you around. You see the city buildings ahead getting closer, taller. The end of your journey is there, somewhere, in that huge mass of steel, concrete, and glass. Closer, closer, your data packet is starting to slip away. You're so thin, so weak. The buildings are hitting you, bouncing you around. There's a roaring in your ears; hundreds of other Signals are surrounding you, bumping, shoving, pushing. Your antenna is just ahead, but all of your energy is gone. The packet... the packet.... The antenna is reaching for you.... Almost there.... Almost... there.... In the rooftop Cafeteria, a worker suddenly zaps a microwave oven on. Aaaaaaaaaaahhhhh!"
Geklaut bei 
Gwendolyn, Original von dem Buch "Deploying License-Free Wireless Wide-Area Networks"
Posted by Benni at 17.06.05 20:44