27-03-2012, 03:52 PM
plzzz give me ppt on airborne internet technology...
27-03-2012, 03:52 PM
plzzz give me ppt on airborne internet technology...
14-08-2012, 10:36 AM
Airborne Internet
airborn internet.doc (Size: 261 KB / Downloads: 63) INTRODUCTION Airborne Internet is a concept that overlays computer network theory and principles into the transportation realm. The goal is to create information connectivity by providing a general purpose, multi-application data channel for people in transit. It is an approach to provide a general purpose high speed digital network to aviation. In doing so it has the potential to provide significant cost savings for aircrafts operators and the FAA, as it allows the consolidation of many functions into a common data channel. Numerous applications can use the same data channel. It gets its name from the fact that it works like the real internet. Airborne Internet began as a supporting technology for NASA’s Small Aircrafts Transportation System. But there is no reason that A.I should be limited to SATS-class aircraft. All of aviation, and even transportation, has the potential to benefit from A.I. Airborne Internet provide a general purpose data channel that numerous applications can use. By combining application and data functionality over a common data channel, aviation has the potential to significantly reduce costs for equipage on the ground and in the aircraft. INTRODUCTION Airborne Internet is a concept that overlays computer network theory and principles into the transportation realm. The goal is to create information connectivity by providing a general purpose, multi-application data channel for people in transit. It is an approach to provide a general purpose high speed digital network to aviation. In doing so it has the potential to provide significant cost savings for aircrafts operators and the FAA, as it allows the consolidation of many functions into a common data channel. Numerous applications can use the same data channel. It gets its name from the fact that it works like the real internet. Airborne Internet began as a supporting technology for NASA’s Small Aircrafts Transportation System. But there is no reason that A.I should be limited to SATS-class aircraft. All of aviation, and even transportation, has the potential to benefit from A.I. Airborne Internet provide a general purpose data channel that numerous applications can use. By combining application and data functionality over a common data channel, aviation has the potential to significantly reduce costs for equipage on the ground and in the aircraft. NEED FOR A HIGHER BANDWIDTH: The second reason is related with the need for a higher bandwidth. The computer most people use comes with a standard 56K modem, which means that in an ideal situation the computer would downstream at a rate of 56 kilobits per second (Kbps). That speed is far too slow to handle the huge streaming-video and music files that more consumers are demanding today. That's where the need for bigger bandwidth – broadband -- comes in, allowing a greater amount of data to flow to and from the computer. Land- based lines are limited physically in how much data they can deliver because of the diameter of the cable or phone line. In an airborne Internet, there is no such physical limitation, enabling a broader capacity. PRINCIPLE& WORKING The principle behind the A.I. is to establish a robust, reliable, and available digital data channel to aircraft. Establishing the general purpose, multi-application digital data channel connection to the aircraft is analogous to the connection of a desktop computer to its local area network, or even the wide area network we call the Internet. But aircraft are mobile objects. Therefore, mobile routing is required to maintain the data channel connectivity while the aircraft moves from region to region Mobile routing is the ability of a network user to move from one network to another without losing network connectivity. It has been developed and has matured to the point that it is ready to be applied to aviation. SERVICE CLASSES There are various classes of service to be provided. A consumer service would provide 1-5 Mbps communication links. A business service would provide 5-12.5 Mbps links. Since the links would be "bandwidth-on- demand," the total available spectrum would be time-shared between the various active sessions. The nominal data rates would be low while the peak rates would expand to a specified level. A gateway service can be provided for "dedicated" links of 25-155 Mbps DESIGN OPTIONS FORANTENNAS The Airborne Network will use an array of narrow beam antennas on the Airborne Aircraft to form multiple cells on the ground. Each cell covers a small geographic area, e.g., 4 to 8 square miles. The payload is liquid-cooled and operates off of about 20 kilowatts of DC power. An 18-foot dish underneath the plane is responsible for reflecting high-speed data signals from a ground station to our computer. The wide bandwidths and narrow beamwidths within each beam or cell are achieved by using MMW frequencies. Small aperture antennas can be used to achieve small cells. For example, an antenna having a diameter of only one foot can provide a beamwidth of less than three degrees. One hundred dish antennas can be easily carried by the Airborne Aircraft to create one hundred or more cells throughout the service area. If lensed antennas are utilized, wider beams can be created by combining beams through each lens aperture, and with multiple feeds behind each lens multiple beams can be formed by each compound lens. CONCLUSION AI is the most recent development in the conventional internet of today. It takes the internet into transportation realms. It would be a high-speed digital network. Information would be passed between aircrafts and the ground by the Internet. Development of the Airborne Internet has already begun. Mainly three companies are planning to provide high-speed wireless Internet connection by placing aircraft in fixed patterns over hundreds of cities. Angel Technologies is planning an airborne Internet network, called High Altitude Long Operation (HALO), which would use lightweight planes to circle overhead and provide data delivery faster than a T1 line for businesses. Consumers would get a connection comparable to DSL. The centrepiece of this network is the Proteus plane, which will carry wireless networking equipment into the air. Each city in the HALO Network will be allotted three piloted Proteus planes. Each plane will fly for eight hours before the next plane takes off. After takeoff, the Proteus plane will climb to a safe altitude, above any bad weather or commercial traffic, and begin an 8- mile loop around the city. Each plane will accommodate two pilots, who will split flying duties during their eight-hour flight.
22-09-2012, 05:21 PM
AIRBORNE INTERNET
AIRBORNE.ppt (Size: 358 KB / Downloads: 76) INTRODUCTION “ Airborne internet (AI) is a private, secure and reliable peer-to-peer aircraft communications network that uses same technology as commercial internet.” Implementation systems A HALO overhead-Angel technologies Sky station blimp- Sky station International NASA’s sub space plans- Aero vironment CONCLUSION AI technology has wide range utilities in the field of aviation services like Aircraft monitoring, air traffic management and weather information Internet access at high altitudes Fast download speed Fast data transfer Internet provider for remote areas
20-01-2014, 04:07 PM
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