09-07-2012, 04:22 PM
STRATELLITES
[attachment=27299]
Why 4G?
High speed
High capacity with low bit cost
High capacity with reasonable frequency bandwidth
4G and its Systems
Some of the systems for mobile communications are:
Broad-Band Wireless Systems
Intelligent Transport Systems
High Altitude Stratospheric Platform Station Systems (HAPS)
HAPS
Broadband access link
Operated at an altitude between 3-22Km
HAA is 25 times larger than “Good year blimp”
INTRODUCTION
A “Stratellite” is a high altitude airship (HAA) which are unmanned Kevlar balloons filled with helium
STRATELLITE
Placed in stratosphere 13 miles above the earth
Placed significantly lower than earth’s lower orbit
Can service a 3,00,000 square mile area
CONSTRUCTION
Outer layer is made of spectra
Spectra is a fabric used in bullet proof vests
Inner layer is made of Mylar
Mylar is a thin but strong polyester film
Filled with a mixture of helium and air
STRATELLITE CONSISTS OF :
Propeller
Solar cells
Regenerative fuel cells
Helium gas bag
Catenary curtain
X-shaped tail assembly
Hybrid electric motors
Transponder
Working
The helium gas expands pushing air out and lifting airship
Uses solar cells sprayed on their surface to generate electricity
The generated electricity drives propellers that work with GPS technology to keep the stratellite stationary
PROS
Decreases Signal latency
Low expensive to launch
Service an area of 300,000 square-miles
Two-way high speed data communication
High speed broad-band access even in remote area
CONS
may lead to traffic problems in stratosphere
would require efficient ground control and maintenance
SERVICES
By linking several stratellites we can provide wireless broadband network for thousands of miles
We can be connected to internet immediately after reopening the laptop
APPLICATIONS
Stratellite can provide efficient solutions in the field of fighting ecological disasters
Stratellite can be used as a floating mobile telecommunication station for all telecommunication
CONCLUSION
Provide the require facilities of wireless communication more efficiently than the ordinary towers
Minimizes the cost of communication
The idea of stratellite, if successful, would be revolutionary for underserved areas and also play a vital role in future generation wireless communication
When all satellite communications are blocked due to superheating of the stratosphere, Stratellites can maintain their own global communications
[attachment=27299]
Why 4G?
High speed
High capacity with low bit cost
High capacity with reasonable frequency bandwidth
4G and its Systems
Some of the systems for mobile communications are:
Broad-Band Wireless Systems
Intelligent Transport Systems
High Altitude Stratospheric Platform Station Systems (HAPS)
HAPS
Broadband access link
Operated at an altitude between 3-22Km
HAA is 25 times larger than “Good year blimp”
INTRODUCTION
A “Stratellite” is a high altitude airship (HAA) which are unmanned Kevlar balloons filled with helium
STRATELLITE
Placed in stratosphere 13 miles above the earth
Placed significantly lower than earth’s lower orbit
Can service a 3,00,000 square mile area
CONSTRUCTION
Outer layer is made of spectra
Spectra is a fabric used in bullet proof vests
Inner layer is made of Mylar
Mylar is a thin but strong polyester film
Filled with a mixture of helium and air
STRATELLITE CONSISTS OF :
Propeller
Solar cells
Regenerative fuel cells
Helium gas bag
Catenary curtain
X-shaped tail assembly
Hybrid electric motors
Transponder
Working
The helium gas expands pushing air out and lifting airship
Uses solar cells sprayed on their surface to generate electricity
The generated electricity drives propellers that work with GPS technology to keep the stratellite stationary
PROS
Decreases Signal latency
Low expensive to launch
Service an area of 300,000 square-miles
Two-way high speed data communication
High speed broad-band access even in remote area
CONS
may lead to traffic problems in stratosphere
would require efficient ground control and maintenance
SERVICES
By linking several stratellites we can provide wireless broadband network for thousands of miles
We can be connected to internet immediately after reopening the laptop
APPLICATIONS
Stratellite can provide efficient solutions in the field of fighting ecological disasters
Stratellite can be used as a floating mobile telecommunication station for all telecommunication
CONCLUSION
Provide the require facilities of wireless communication more efficiently than the ordinary towers
Minimizes the cost of communication
The idea of stratellite, if successful, would be revolutionary for underserved areas and also play a vital role in future generation wireless communication
When all satellite communications are blocked due to superheating of the stratosphere, Stratellites can maintain their own global communications