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the halo networks are used to provide broadband network connections. unlike treditional network connections for broad band, its an integration of terrestrial and satellite connections.this was done by one of my friends Ben Jhon.this presentation is uploaded by all his permission
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BEN. JOHN , S N G C E
BEN. JOHN , S N G C E
HALO NETWORK-INTRODUCTION
SYSTEM ARCHITECTURE
ELEMENTS OF HALO NETWORK
POWER SYSTEM AND SYSTEM REQUIREMENTS
AEROPLANE PROPERTIES
DESIRABLE FEATURES
ADVANTAGES OVER SATELLITE
AND TERRESTRIAL NETWORKS
APPLICATIONS
CONCLUSION
BEN. JOHN , S N G C E
BEN. JOHN , S N G C E
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
Halo Networks
The HALO Aircraft -the hub Consumer Premise Equipment ("CPE") Business Premise Equipment ("BPE") HALO Gateway ("HG")
BEN. JOHN , S N G C E
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
BEN. JOHN , S N G C E
BEN. JOHN , S N G C E
Communications Payload Pod is mounted to a pylon under the fuselage. 0.8 tonne weight communications pod
Each cell covers a small geographic area, e.g., 4 to 8 square miles.
The wide and narrow beamwidths within each beam or cell are achieved by using MMW frequencies.
Small aperture antennas can be used to achieve small cells.
An ATM-like packet switch provides the network switching capability to cross-connect all users within the coverage area as well as connections to other users through gateways.
The elements are MMW transceivers, pilot tone transmitter, high-speed modems, SONET multiplexers, packet switch hardware and software
It is relatively simple.
It comprising a Radio Frequency Unit and a Network Interface Unit.
The Radio Frequency Unit contains the steerable dish antenna, a millimetric band transmitter , a millimetric band receiver, and the antenna steering mechanism.
It contains the modulators and demodulators for the signal.
The feed to and from the Radio Frequency Unit is done in the 1.4 GHz band, with up/down conversion performed in the Radio Frequency Unit.
BEN. JOHN , S N G C E
Pow ered by tw in turbofan eng ines and designed to have an "efficient high-altitude loiter"
Aircrafts pow er s ys tem consist of S olar Photovoltaic cell with a regenerative fuel cell.
Advantag e of using this is that it eliminates the need of and compress air at high altitude.
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
The HALO Aircraft is alsocalled Proteus Aircraft.
Halo Networks
The Proteus is built with composite materials.
Weight -- 6.4 tonnes
Engine Type -- Williams FJ44-2E jet engines.
Seating for two pilots, with an extra seat for a relief pilot or passenger.
The cabin is pressurised and high altitude pressure suits are not required.
BEN. JOHN , S N G C E
AIRCRAFT PROPERTIES ( CONTINUED..) Halo Networks
Halo Networks
Total coverage of a metropolitan center and its surrounding communities on the first day
Access to the consumer, and content information markets
Easy upgrades of the entire network
Steady improvement of performance through routine maintenance
Integration of technologies from terrestrial communications networks, wireless and wired
Bandwidth on demand for efficient use of available spectrum.
BEN. JOHN , S N G C E
Eg:Ubiquitous Access through the HALO Network
Halo Networks
BEN. JOHN , S N G C E
Ease of Installation
1. The Consumer Premise Equipment (CPE) , whether delivered or purchased through a retailer, is designed for rapid installation and ease of use.
2. The antenna is self-pointing and is mounted on an outside area offering a clear view of the HALO™ aircraft.
Halo Networks
BEN. JOHN , S N G C E
Provides data densities nearly one thousand times higher.
It has high power available to their payload.
The HALO Network integrated with a satellite network can increase the throughput, competitiveness, and revenue of a satellite constellation.
Because of the relatively short distance between the HALO node and the end user (10 to 35 miles), low-cost, low-power premise equipment can be used.
The HALO Network can serve hundreds-of-thousands of broadband end users on a metropolitan distance scale.
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
Over satellite network : S atellite network have expensive high power user
terminal and long propagation delay. system capacity is practically fixed. Establishing a provides data densities nearly
one thousand times higher new satellite is very expensive Having round trip time delays Satellites have limited power
available to their payloads. Satellites require costly premise
equipment.
Halo Networks
Over Terrestrial network Terrestrial networks have low look angles and
complex infrastructure. They require many base stations that must be
interlinked with cables. The communication paths have low look angles with
multipath Rayleigh fading. Each time cell splitting is used to increase system
capacity, the network can demand significant reengineering
Halo Networks
The stratospheric HALO aircraft offer three benefits to an integrated HALO-satellite global network:
1. As HALO aircraft are high above the atmosphere, they easily link to numerous satellites.
2. HALO-to-satellite link use very high carrier frequencies offering ultra-wide bandwidths.
2. The HALO be the front-end of anintegrated system.
To HALO-satellite global network :
Widely separated customers can receive same
communication as in entertainment broadcasting.
We can access interactive TV and internet. Customers can have large coverage area in
telecommunication compared to terrestrial network.
Can use as a communication techniques for remote areas.
Can use in marine communication system.
Halo Networks
The HALO Network can provide wireless broadband communications services. The HALO/Proteus airplane will be the central node of a broadband communications network, the HALO Network, having a star topology.The network will utilize packet switching to offer bit rates to each of thousands of end user in the multi-megabit per second range. A variety of spectrum bands licensed for commercial wireless services could provide the needed MMW-carrier bandwidth. The signal footprint of the network, the Cone of Commerce, will cover a typical large city and its surrounding communities. HALO aircraft will fly above commercial airline traffic. A fleet of aircraft will be operated in shifts to achieve around-the-clock service. Finally, the HALO Network will be an evolving "network solution" that can be deployed one market at a time to ease the financing commitment of growing a global business.
Halo Networks
BEN. JOHN , S N G C E
1.N. Colella and J. Martin, "The Cone of Commerce™," Proc. of the SPIE International Symposium on Voice, Video, and Data Communications: Broadband Engineering for Multimedia Markets, 1997.
1.G. Djuknic, J. Freidenfelds, et al., "Establishing Wireless Communications Services via High-Altitude Aeronautical Platforms: A Concept Whose Time Has Come?," IEEE Communications Magazine, September 1997.
3. www.angelcorp.com/overview.htm
Halo Networks
BEN. JOHN , S N G C E
Halo Networks
BEN. JOHN , S N G C E
BEN. JOHN , S N G C E
