The Airborne InternetEE-400 Communication Networks1 The Airborne Internet Done By:

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Presentation transcript:

The Airborne InternetEE-400 Communication Networks1 The Airborne Internet Done By:

The Airborne Internet EE-400 Communication Networks2 Outline What is the Airborne Internet. How AI works. Subscriber units. Difference between Satellite and AI. One Type of Airplanes. Conclusion.

The Airborne Internet EE-400 Communication Networks3 What is Airborne Internet Some internet service: 1- cable TV 2- DSL What is (AI)? It is an internet broadband which Provide high-speed wireless internet connection by placing aircraft in fixed path over hundreds of cities

The Airborne Internet EE-400 Communication Networks4 What is Airborne Internet (AI) deliver high-speed internet : Around 25Mb/s for business users And around 5 Mb/s for home users (AI) uses a network called High Altitude Long Operation (HALO) This network is used by U.S. army.

The Airborne Internet EE-400 Communication Networks5 How AI Work The aircraft work as hub HALO work as wireless network with star topology (ISP) Internet Service Provider send the data through a gateway to the hub in the aircraft

The Airborne Internet EE-400 Communication Networks6 How AI Work AI divide the area into different cells. (mobile cells) each spot beam serves a single "cell" on the ground in a frequency-division multiplex fashion with 5-to-1 four sub-bands for subscriber units (A,B,C and D) The fifth sub-band for the gateway (E)

The Airborne Internet EE-400 Communication Networks7 How AI Work To provide the service for 24 hours, three aircraft will be used. Each one for 8 hours.

The Airborne Internet EE-400 Communication Networks8 How AI Work This service can cover cities area around 75 mile in diameter The aircraft will fly at altitude 51,000 ft (15,500 m) It use high-frequency. between GHz

The Airborne Internet EE-400 Communication Networks9 Subscriber units The user terminal consists of three main parts: 1- The radio frequency unit (RU) a) MMW Antenna b) MMW Transceiver c) An antenna tracking unit An antenna tracking unit uses a pilot tone transmitted from the HALO aircraft to point its antenna at the airplane 2- The Network Interface Unit (NIU) 3- the application terminals such as PCs, telephones, video servers, etc.

The Airborne Internet EE-400 Communication Networks10 Subscriber units

The Airborne Internet EE-400 Communication Networks11 Difference between Satellite and AI AI does not need frequency bands license  Can service hundred-thousand of broadband subscribers Single link delays range from ~60 msec under the airplane to ~200 msec at the edge of the signal

The Airborne Internet EE-400 Communication Networks12 Difference between Satellite and AI AI serviceSatellite Time delay Small delayBig delay Frequency GHz4-6 GHz 9-13 GHz Power Low PowerHigh Power Cost Low CostHigh Cost

The Airborne Internet EE-400 Communication Networks13 the Proteus airplane The Proteus was developed by NASA It is designed with long wings and low wing loading  It can fly in high-altitude 18-foot dish underneath the plane is responsible for reflecting high- speed data signals from a ground station to users.

The Airborne Internet EE-400 Communication Networks14 Conclusion The airborne internet provide high- speed internet. AI has many advantage than satellite communication. This new service will be useful for who live in small village

The Airborne Internet EE-400 Communication Networks15 Source s15http:// s15 internet.htmhttp://computer.howstuffworks.com/airborne- internet.htm IEEE Communications Magazine June 2000 page MWCON'98 Proceedings page 9-14

The Airborne Internet EE-400 Communication Networks16 Question 1- What is (AI) ? It is an internet broadband by aircraft. 2- the aircraft works as A- hub B- server C- ISP 3- which type of topology (HALO) use: A- mesh topology B- star topology C- Ring topology 4- the frequency of (AI) is: A MHz B KHz C GHz 5- the device which is used the pilot tone to direct the antenna is: A- MMW Antenna B- MMW transceiver C- An antenna tracking unit