Transcript Broadband Comms Services from HAPs

HAP Network Concept
1
SkyNet
2
- JAPAN
Milestones for Development of HAPs
(Designed by NAL, Japan)
2006~
2002~2003
Ground-to-Stratosphere
Test Flight
(45-m class, non-powered,
Payload 40kg)
2003~2004
Low-Altitude
Station-Keeping Flight
(65-m class, powered,
Payload 250kg)
Technology
Demonstrator Flight
(150-m class, powered,
Payload~500kg?)
(250-m class,
Powered)
Total system test,
Telecom and observation mission
Test on materials,
Thermal control,
Environmental observation
~20km
~15km
Control, Operation,
Telecom mission
3
Commercial
Flights
~4km
See www2.crl.go.jp/mt/b181/research/spf/index-e.html
The CAPANINA Consortium
€5.6M total, €3.1M EU Contribution
64 people involved
Balanced research, development
and exploitation activities
1 Overseas collaborator
National Institute of
Information and
Communications
Technology of Japan
4
SkyStation
See www.skystation.com
5
- USA
ATG StratSat
- UK
200 m class airship.
Communications Payload 1000-2000 kg
See www.airship.com
6
StratSat Malaysia
Consortium)
7
(UK
StratSat Malaysia
‘NEW HEIGHTS IN NETWORKS’
GROUNDSTATION
• System Control
•Service Gateways
8
MOBILE
BROADBAND
EO / IR
RADAR
• 3G
• Emergency
• Tactical Comms
•
•
•
•
•
•
•
•
• All Weather 24hr
• Early Warning
• Air Traffic Control
Internet Access
MultiMedia
Broadcast TV
Strategic Comms
24 hr Surveillance
Environmental
Cartography
Meteorological
AeroVironment craft

Unmanned

Wing span 247 ft

Achieved height of
96863ft Aug 2001

Range of craft

NASA funded

(now spin off company
called Skytower Inc to
handle comms links)
See www.aerovironment.com,
www.skytowerglobal.com
9
A Complementary or Disruptive Technology?
Time
Complementary
- augment existing systems
- niche markets
- small number of users
Disruptive
-
10
well developed technology
large number of users
replace terrestrial/satellite services
mobile, B-FWA
Lenticular airship
Satellite backhaul
for areas with no
infrastructure
B-FWA 150km diameter
footprint
11
Mobile ‘3G’
up to 1000km diameter
footprint?
HAP Architecture
Backhaul via
satellite for remote areas
Local Backhaul
to Hub for less
remote areas
Fibre
Network
12
Broadband Services
60km
Fibre
Network
Structure of the Atmosphere
IONOSPHERE
100 km
80 km
50 km
THERMOSPHERE
MESOSPHERE
STRATOSPHERE
10 km
0 km
13
TROPOSPHERE
Supersonic
Aircraft
HAP
Using Site Diversity to Overcome Rain
Attenuation
Site Diversity on the backhaul link
Backhaul Ground Stations
14
So, will HAPs really Happen?
CONFIDENCE
INVESTMENT
DEMONSTRATION
DEVELOPMENT
15
HAPs - What are they ?
 Either
16
airships or planes
 Situated
typically 17-22km
above the Earth
Coverage from a HAP
 Potentially

17
very large coverage.
E.g. - 1 HAP over London
@ 20 km altitude: line of sight:
5º elevation
MedNet: Planned network of HAPs
- each covering a city region
18