26-08-2014, 11:15 AM
HALO NETWORK
[attachment=67028]
ABSTRACT:
Broadband wireless millimeter wavelength services provided from a High Altitude Long Operation (HALO) Aircraft are now feasible. Our talk will emphasize the conceptual design of a "bandwidth-on-demand" wireless network whose data rates to and from the subscriber will measure in the multi-megabit per second range. A variety of metropolitan area spectrum bands offer the needed bandwidth. An attractive choice is the LMDS band near 28 GHz and system characteristics at this frequency will be described.
The HALO Aircraft fuselage will house packet switching circuitry and fast digital network functions. The communications antenna and related components will be located in a pod suspended below the aircraft fuselage. To offer "ubiquitous" service throughout a large region, The HALO antenna will utilize multiple beams arranged in a typical cellular pattern. Broadband channels to subscribers in adjacent cells will be separated in frequency. As the beams traverse over a user location, the virtual path through the packet switch will be changed to perform a beam-to-beam handoff.
INTRODUCTION:
The High Altitude Long Operation (HALO) network is a broad band wireless metropolitan area network consisting of HALO aircraft operating at high altitude and carrying an airborne communication network hub and network elements on the ground. The HALO network will be located in the atmosphere, at altitude miles above terrestrial Wireless, but hundreds to thousands of miles below satellite networks. It will provide broad Band services to business and small offices in an area containing a typical large city. The HALO network infrastructure is simple, having a star topology with single central hub. Consequently, the deployment service to the entire metropolitan area can occur in the first day The network deployed and subsequent maintenance cost is expected to be low. The system Capacity can be increased by decreasing the size of beam spots on the ground while increasing the number of beams with in the signal foot print or by increasing the signal bandwidth beam
THE SYSTEM REFERENCE MODEL OF THE HALO NETWORK
The major elements of the conceptual HALO network are the airborne communications hub Carried by the HALO/Proteus airplane, the premises equipment or user terminals, the network Control station, the HALO gateway (HG) and the various interfaces. The reference architecture shows the topology of the interconnected network elements. The HALO network can be connected to non-HALO networks such as ATM networks, internet and frame relay via an HG/inter working unit (IWU).
CONCLUSIONS:
The HALO network will provide wireless broadband communication services. The Feasibility of this network is assured due to convergence of technological advancements. The key enabling technologies at hand include ATM/SONET technology, digital signal processing of wide band signals, video compression, ultra dense memory modules, light wave aircraft Technology .These technologies available to a great extent, from vendors targeting commercial Markets.
The HALO network is predicated on the successful integration of these technologies to offer communications service of high quality and utility to small and medium-sized Business at reasonable prices. Customers will be able to access the HALO Network unobstructed by buildings and terrain features that affect ground-based systems and fill-in coverage when terrestrial infrastructure is incomplete or missing. In the developing world, airborne deployment will make wireless telephony services possible. In developed countries, new broadband data services — including real-time, high-definition video conferencing; telephone calls; broadband Internet connections; and large file transfers — can be accessed at substantially reduced cost and at extremely high speed
[attachment=67028]
ABSTRACT:
Broadband wireless millimeter wavelength services provided from a High Altitude Long Operation (HALO) Aircraft are now feasible. Our talk will emphasize the conceptual design of a "bandwidth-on-demand" wireless network whose data rates to and from the subscriber will measure in the multi-megabit per second range. A variety of metropolitan area spectrum bands offer the needed bandwidth. An attractive choice is the LMDS band near 28 GHz and system characteristics at this frequency will be described.
The HALO Aircraft fuselage will house packet switching circuitry and fast digital network functions. The communications antenna and related components will be located in a pod suspended below the aircraft fuselage. To offer "ubiquitous" service throughout a large region, The HALO antenna will utilize multiple beams arranged in a typical cellular pattern. Broadband channels to subscribers in adjacent cells will be separated in frequency. As the beams traverse over a user location, the virtual path through the packet switch will be changed to perform a beam-to-beam handoff.
INTRODUCTION:
The High Altitude Long Operation (HALO) network is a broad band wireless metropolitan area network consisting of HALO aircraft operating at high altitude and carrying an airborne communication network hub and network elements on the ground. The HALO network will be located in the atmosphere, at altitude miles above terrestrial Wireless, but hundreds to thousands of miles below satellite networks. It will provide broad Band services to business and small offices in an area containing a typical large city. The HALO network infrastructure is simple, having a star topology with single central hub. Consequently, the deployment service to the entire metropolitan area can occur in the first day The network deployed and subsequent maintenance cost is expected to be low. The system Capacity can be increased by decreasing the size of beam spots on the ground while increasing the number of beams with in the signal foot print or by increasing the signal bandwidth beam
THE SYSTEM REFERENCE MODEL OF THE HALO NETWORK
The major elements of the conceptual HALO network are the airborne communications hub Carried by the HALO/Proteus airplane, the premises equipment or user terminals, the network Control station, the HALO gateway (HG) and the various interfaces. The reference architecture shows the topology of the interconnected network elements. The HALO network can be connected to non-HALO networks such as ATM networks, internet and frame relay via an HG/inter working unit (IWU).
CONCLUSIONS:
The HALO network will provide wireless broadband communication services. The Feasibility of this network is assured due to convergence of technological advancements. The key enabling technologies at hand include ATM/SONET technology, digital signal processing of wide band signals, video compression, ultra dense memory modules, light wave aircraft Technology .These technologies available to a great extent, from vendors targeting commercial Markets.
The HALO network is predicated on the successful integration of these technologies to offer communications service of high quality and utility to small and medium-sized Business at reasonable prices. Customers will be able to access the HALO Network unobstructed by buildings and terrain features that affect ground-based systems and fill-in coverage when terrestrial infrastructure is incomplete or missing. In the developing world, airborne deployment will make wireless telephony services possible. In developed countries, new broadband data services — including real-time, high-definition video conferencing; telephone calls; broadband Internet connections; and large file transfers — can be accessed at substantially reduced cost and at extremely high speed