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Satellites: New Technologies and New Systems
David Ball
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Agenda Current State of the Industry High Throughput Satellites
New Space Antenna Technology
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Current State of the Industry
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Big Four Operators SES Intelsat Eutelsat Telesat
53 satellites in orbit 7 new satellites to be launched over next 3 years 2015 revenue Euro 2.0B Intelsat 50+ satellites in orbit 2015 revenue US$ 2.35B Eutelsat 39 satellites in orbit 6 new satellites to be launched over next 3 years 2014/15 revenue Euro 1.4B Telesat 15 satellites in orbit 2015 revenue C$ 955M
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Headwinds Capacity Pricing Launch Vehicle Availability
Competition from new entrants ABS ViaSat Avanti YahSat Impact of disruptive technology High Throughput Satellites Reach of Fibre Impact of OTT
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High Throughput Satellites
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High Throughput Satellites
Definition Multi-spot beam, multiple frequency re-use Significantly greater throughput from a given orbital location compared to traditional FSS designs HTS satellites are not restricted to Ka band Some of the first HTS satellites operated at Ku band (IPStar) Intelsat EPIC GEO HTS Regional Global Constellations MEO HTS Constellations LEO HTS Constellations
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GEO HTS Throughput Growth
Satellite Year Band Throughput Various Ku/C 2 GHz IPStar 2005 Ku/Ka 45 Gbps Wildblue-1 2006 Ka 8 Gbps Spaceway-3 2007 10 Gbps Ka-Sat 2010 90 Gbps ViaSat-1 2012 140 Gbps NBN-1a 2015 135 Gbps Viasat-2 2016 >200 Gbps Viasat-3 2019 (planned) 1 Tbps
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Telstar 12 Vantage
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SES HTS Fleet Expansion
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Intelsat Epic Satellites
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Inmarsat-5 constellation
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Viasat-3 Constellation
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Closed versus Open Systems
Closed Systems Purchase managed service (Mbps) Pre-defined standardised service offering Asymmetric services are typical Remote terminals standardised All traffic must flow through operator’s gateways QoS is pre-defined Open Systems Can purchase MHz Hybrid models also offer managed service options Offerings are tailored for specific applications Third party gateways are possible QoS is determined by network configuration
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Existing HTS Systems Closed Systems Open Systems
Fully Integrated Offerings ViaSat Hughesnet Satellite Operator / Vendor Partnership Inmarsat GX iDirect Eutelsat tooway ViaSat Yahsat Hughes Telesat Vantage 19 Hughes NBNCo ViaSat Open Systems Intelsat Epic IPStar Inmarsat High Capacity Overlay Payload O3b (MEO constellation)
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Is HTS a Disruptive Technology?
Changing the metrics of the satellite industry Mbps versus MHz Fill-rate – what is the valid measurement? End-to-end solutions Packaged solutions rather than bespoke solutions Potential to cannibalise existing FSS revenues ViaSat-3 constellation = 2 x total capacity of existing GEO fleet Impact on service providers and teleport operators Defined gateway locations Operator build out of unified network Limited opportunities for third party teleport operators
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HTS System Design Total System Throughput is determined by:
Modulation Efficiency Available Bandwidth Frequency Re-use
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HTS System Design Improving Total System Throughput:
Modulation Efficiency Gains are limited by channel non-linearity Available Bandwidth Reduce colour count – wider transponder BW Expansion into non-standard bands, new frequency bands Frequency Re-use Narrower beams, increased spotbeam count, increased frequency re-use
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Transitioning from Ku- to Ka-band
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Transitioning from Ku- to Ka-band
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Future HTS Developments
Demand drivers quest for more throughput....the Netflix effect..... Fast, cheap, good Pick any two.....
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Future HTS Developments – Efficiency Drivers / Goals
Increase Overall Throughput Modulation efficiency Use of new frequency bands for feeder links Need to consider spectrum licensing and availability Reduce Cost per Bit Space segment cost – improve efficiency Gateway efficiency – throughput / number of gateways Reduce cost of user equipment / antennas / installation Flexible Architecture Respond to changing market demands Increased deployment of processing payloads
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Future HTS Developments – Additional Spectrum
Use additional feeder link spectrum Q band Space-to-earth 37.5 – 42.5 GHz V band Earth-to-space GHz W band Space-to-earth GHz Earth-to-space GHz Most ITU filings already include Q and V band The race for spectrum has begun early Equipment availability limited at this time
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Current Ka Spectrum Usage (varies by ITU region)
Gateways Users Earth-to-space 27 GHz 29.5 GHz 30 GHz Forward Return Gateways Users Space-to-earth 17.3GHz 19.7GHz 20.2GHz
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Potential Future Usage - add Q and V bands
Gateways Users Earth-to-space 27 GHz 30 GHz 47.2 GHz 51.4 GHz Forward Return Gateways Users Space-to-earth 17.3GHz 37.5 GHz 20.2GHz 42.5 GHz Q band Issues: - Licensing of remote terminals over wider spectrum range - Potential for interference to / from terrestrial users in shared Ka bands - Coordination with non-GSO systems
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New Space
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Non-GEO Constellations
Optical Constellation Laser Light MEO constellation, 8 satellites, 6 Tbps throughput Recent announcements of LEO HTS systems COMMstellation 75 satellites LEOSat Oneweb SpaceX Samsung Xinwei 30
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HTS Constellations Deployment of LEO HTS networks will represent order of magnitude increase in HTS capacity Gbps Gbps 2023 with one LEO 8500 Gbps 2023 with three LEO Gbps Source: Northern Skies Research
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LEO HTS Constellations - questions
Capacity density is lacking Different constellations are focused on different applications Backhaul Direct to user broadband Enterprise Polar orbits User terminal technology Satellite switching Electronically steered antenna technology Launch Vehicle Capacity for large constellations Where will the launch capacity come from?
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Antenna Technology
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Satellite News Gathering
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Comms on the Move
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Maritime Antennas
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Aeronautical antennas
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David Ball dball1301@gmail.com
Questions David Ball
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