The Impact of Emerging Commercial Satellite
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Satellite Constellations - 2021 Industry Survey and Trends
[SSC21-XII-10] Satellite Constellations - 2021 Industry Survey and Trends Erik Kulu NewSpace Index, Nanosats Database, Kepler Communications [email protected] ABSTRACT Large satellite constellations are becoming reality. Starlink has launched over 1600 spacecraft in 2 years since the launch of the first batch, Planet has launched over 450, OneWeb more than 200, and counting. Every month new constellation projects are announced, some for novel applications. First part of the paper focuses on the industry survey of 251 commercial satellite constellations. Statistical overview of applications, form factors, statuses, manufacturers, founding years is presented including early stage and cancelled projects. Large number of commercial entities have launched at least one demonstrator satellite, but operational constellations have been much slower to follow. One reason could be that funding is commonly raised in stages and the sustainability of most business models remains to be proven. Second half of the paper examines constellations by selected applications and discusses trends in appli- cations, satellite masses, orbits and manufacturers over the past 5 years. Earliest applications challenged by NewSpace were AIS, Earth Observation, Internet of Things (IoT) and Broadband Internet. Recent years have seen diversification into majority of applications that have been planned or performed by governmental or military satellites, and beyond. INTRODUCTION but they are regarded to be fleets not constellations. There were much fewer Earth Observation com- NewSpace Index has tracked commercial satellite panies in 1990s and 2000s when compared to com- constellations since 2016. There are over 251 entries munications and unclear whether any large constel- as of May 2021, which likely makes it the largest lations were planned. -
Opportunities for Asia and the Pacific
DIGITAL CONNECTIVITY AND LOW EARTH ORBIT SATELLITE CONSTELLATIONS: OPPORTUNITIES FOR ASIA AND THE PACIFIC John Garrity, Consultant (Digital Connectivity), Digital Technology for Development, [email protected] AN ‘EMERGING CONNECTIVITY INNOVATION’ … 30+ YEARS IN THE MAKING How it started: (1990s) How it ended: (early 2000s) “…in the end the financial, technical and business risks associated with Te l e d e s i c could not be retired.” - Tre n Griffin (Te l e d e s i c employee #4) https://www.wired.com/1997/10/teledesic-mounts-lead-in-new-space-race/ https://25iq.com/2016/07/23/a-dozen-things-i-learned-being-involved-in-one-of-the-most-ambitious- http://personal.ee.surrey.ac.uk/Personal/L.Wood/constellations/teledesic-3d.html startups-ever-conceived-teledesic/ CONTENTS I. BACKGROUND: SATELLITE CONNECTIVITY AS A MEANS FOR BROADBAND INTERNET II. INNOVATION IN LOW EARTH ORBIT SATELLITE CONSTELLATIONS III. IN FOCUS: STARLINK’S DEPLOYMENT, DIFFERENTIATION, AND VIABILITY IV. OPPORTUNITIES AND BARRIERS TO LEVERAGING LOW EARTH ORBIT SATELLITES IN DEVELOPING MEMBER COUNTRIES V. RECOMMENDATIONS: WHAT DEVELOPING MEMBER COUNTRIES CAN DO TO LEVERAGE THE OPPORTUNITY PRESENTED BY LOW EARTH ORBIT SATELLITE CONNECTIVITY FILLS NECESSARY ROLE IN INTERNET ECOSYSTEM Telecommunications Network Infrastructure Elements red lines highlight where satellite is utilized International capacity National backbone (core) Middle-mile (backhaul) Last-mile (access) Regional PoPs Fibre or wireless backhaul Wireless (e.g cellular, Wi-Fi, (microwave, cellular) Fixed wireless access) High-capacity links Base station End User devices (phones, computers, etc.) tower and premises (homes, businesses, etc.) International link (undersea, Wireless (e.g. satellite, Wi-Fi) terrestrial or Fibre-optic satellite) cable landing Satellite backhaul station (GEO, MEO, or LEO) End User devices (phones, computers, etc.) and premises (homes, businesses, etc.) Primary nodes (Points of Presence, PoPs) Fibre or wireless backhaul (microwave, cellular) Wired (e.g. -
IAC-18-B2.1.7 Page 1 of 16 a Technical Comparison of Three
A Technical Comparison of Three Low Earth Orbit Satellite Constellation Systems to Provide Global Broadband Inigo del Portilloa,*, Bruce G. Cameronb, Edward F. Crawleyc a Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge 02139, USA, [email protected] b Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge 02139, USA, [email protected] c Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge 02139, USA, [email protected] * Corresponding Author Abstract The idea of providing Internet access from space has made a strong comeback in recent years. After a relatively quiet period following the setbacks suffered by the projects proposed in the 90’s, a new wave of proposals for large constellations of low Earth orbit (LEO) satellites to provide global broadband access emerged between 2014 and 2016. Compared to their predecessors, the main differences of these systems are: increased performance that results from the use of digital communication payloads, advanced modulation schemes, multi-beam antennas, and more sophisticated frequency reuse schemes, as well as the cost reductions from advanced manufacturing processes (such as assembly line, highly automated, and continuous testing) and reduced launch costs. This paper compares three such large LEO satellite constellations, namely SpaceX’s 4,425 satellites Ku-Ka-band system, OneWeb’s 720 satellites Ku-Ka-band system, and Telesat’s 117 satellites Ka-band system. First, we present the system architecture of each of the constellations (as described in their respective FCC filings as of September 2018), highlighting the similarities and differences amongst the three systems. -
Effects on TCP of Routing Strategies in Satellite Constellations
SATELLITE-BASED INTERNET TECHNOLOGY AND SERVICES Effects on TCP of Routing Strategies in Satellite Constellations Lloyd Wood, George Pavlou, and Barry Evans, University of Surrey ABSTRACT number of satellites required to cover the Earth. A lower altitude decreases free space A broadband satellite network uses a constella- loss and propagation delay, but means that the tion of a number of similar satellites to provide service each satellite can offer is limited to wireless networking services to the Earth. A users in a smaller visible area of the ground number of these constellation networks are (the satellite’s footprint). To fully cover the under development. This article introduces the globe, more satellites are needed. This increas- types of satellite constellation networks, and es frequency reuse and overall system capacity, examines how overall performance of TCP com- but will also increase overall system construc- munications carried across such a network can tion and maintenance costs. Satellites at lower be affected by the choice of routing strategies altitudes must move faster relative to the used within the network. Constellations utilizing ground to stay in their orbits, increasing the rate direct intersatellite links are capable of using of handoff and Doppler effects between termi- multiple paths between satellites simultaneously nals and satellites. as a strategy to spread network load. This allows Most proposed systems use circular orbits more general routing strategies than shortest- with constant altitudes, since this means that path routing, but we show these strategies to be satellite overhead pass times and power levels detrimental to the performance of individual needed for communication are constant, and TCP connections. -
Towards 6G Through Sdn and Nfv-Based Solutions for Terrestrial and Non-Terrestrial Networks
TOWARDS 6G THROUGH SDN AND NFV-BASED SOLUTIONS FOR TERRESTRIAL AND NON-TERRESTRIAL NETWORKS A Dissertation Presented to The Academic Faculty By Ahan Kak In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the School of Electrical and Computer Engineering Georgia Institute of Technology May 2021 © Ahan Kak 2021 TOWARDS 6G THROUGH SDN AND NFV-BASED SOLUTIONS FOR TERRESTRIAL AND NON-TERRESTRIAL NETWORKS Thesis committee: Dr. Ian F. Akyildiz (Advisor) Dr. Chuanyi Ji School of Electrical and Computer School of Electrical and Computer Engineering (Formerly) Engineering Georgia Institute of Technology Georgia Institute of Technology Dr. Raghupathy Sivakumar (Chair) Dr. Henry L. Owen School of Electrical and Computer School of Electrical and Computer Engineering Engineering Georgia Institute of Technology Georgia Institute of Technology Dr. Mary Ann Weitnauer Dr. Andy Sun School of Electrical and Computer School of Industrial & Systems Engineering Engineering Georgia Institute of Technology Georgia Institute of Technology Date approved: April 6, 2021 To my family, for their endless love, support, and encouragement. ACKNOWLEDGMENTS I would like to begin by expressing my deepest gratitude to my advisor, Dr. Ian F. Aky- ildiz. I am extremely grateful to him for giving me the life-changing opportunity of joining his lab. His unparalleled vision and boundless passion have been integral in setting me on the path to academic success. Like a guiding light that shines through stormy seas, Prof. Akyildiz’s limitless wisdom has always led the way forward, even in the most difficult of times. His incredible work ethic has been a constant source of inspiration for me throughout this journey, one that has been greatly enriched by his immense knowledge and extensive experience. -
Authorization and Order on Reconsideration, IBFS File No. SAT-MOD
IN THE UNITED STATES COURT OF APPEALS FOR THE DISTRICT OF COLUMBIA CIRCUIT DISH NETWORK CORPORATION, Appellant, v. Case No. ________ FEDERAL COMMUNICATIONS COMMISSION, Appellee. NOTICE OF APPEAL Pursuant to Sections 402(b)(6) and 402(c) of the Communications Act of 1934, as amended, 47 U.S.C. §§ 402(b)(6), (c), and Rule 15(a) of the Federal Rules of Appellate Procedure, DISH Network Corporation (“DISH”) files this notice of appeal of the final order of the Federal Communications Commission (“FCC”) captioned In the Matter of Space Exploration Holdings, LLC; Request for Modification of the Authorization for the SpaceX NGSO Satellite System, Order and Authorization and Order on Reconsideration, IBFS File No. SAT-MOD- 20200417-00037, Call Signs S2983 and S3018, FCC 21-48 (rel. April 27, 2021) (the “Order”). DISH’s Corporate Disclosure Statement is attached as Exhibit A. The full text of the Order is attached as Exhibit B. The Order authorized Space Exploration Holdings, LLC (“SpaceX”) to modify its system of more than 4,000 non-geostationary satellites (the “Starlink” system), and allowed the modified system to use the 12.2-12.7 GHz (“12 GHz”) frequency band for its space-to-Earth operations. See Order ¶ 97(e). In granting this authorization, the FCC ignored unrebutted expert studies submitted by DISH that the Starlink system as modified would significantly exceed the applicable power limits adopted by the FCC for the 12 GHz band, and thus would cause unacceptable interference with DISH’s Direct Broadcast Satellite (“DBS”) service. DISH is one of two DBS providers in the country, together serving over 22 million American families by using the 12 GHz band. -
Commercial Spacecraft Mission Model Update
Commercial Space Transportation Advisory Committee (COMSTAC) Report of the COMSTAC Technology & Innovation Working Group Commercial Spacecraft Mission Model Update May 1998 Associate Administrator for Commercial Space Transportation Federal Aviation Administration U.S. Department of Transportation M5528/98ml Printed for DOT/FAA/AST by Rocketdyne Propulsion & Power, Boeing North American, Inc. Report of the COMSTAC Technology & Innovation Working Group COMMERCIAL SPACECRAFT MISSION MODEL UPDATE May 1998 Paul Fuller, Chairman Technology & Innovation Working Group Commercial Space Transportation Advisory Committee (COMSTAC) Associative Administrator for Commercial Space Transportation Federal Aviation Administration U.S. Department of Transportation TABLE OF CONTENTS COMMERCIAL MISSION MODEL UPDATE........................................................................ 1 1. Introduction................................................................................................................ 1 2. 1998 Mission Model Update Methodology.................................................................. 1 3. Conclusions ................................................................................................................ 2 4. Recommendations....................................................................................................... 3 5. References .................................................................................................................. 3 APPENDIX A – 1998 DISCUSSION AND RESULTS........................................................ -
Chapter 2 SATELLITE CONSTELLATION NETWORKS the Path from Orbital Geometry Through Network Topology to Autonomous Systems
Chapter 2 SATELLITE CONSTELLATION NETWORKS The path from orbital geometry through network topology to autonomous systems Lloyd Wood Collaborative researcher, networks group, Centre for Communication Systems Research, University of Surrey; software engineer, Cisco Systems Ltd. Abstract: Satellite constellations are introduced. The effects of their orbital geometry on network topology and the resulting effects of path delay and handover on network traffic are described. The design of the resulting satellite network as an autonomous system is then discussed. Key words: satellite constellation, network, autonomous system (AS), intersatellite link (ISL), path delay and latency, orbit geometry, Walker, Ballard, star, rosette, Iridium, Teledesic, Globalstar, ICO, Spaceway, NGSO non-geostationary orbit, LEO low earth orbit, MEO medium earth orbit. 1. INTRODUCTION A single satellite can only cover a part of the world with its communication services; a satellite in geostationary orbit above the Equator cannot see more than 30% of the Earth's surface [Clarke, 1945]. For more complete coverage you need a number of satellites – a satellite constellation. We can describe a satellite constellation as a number of similar satellites, of a similar type and function, designed to be in similar, complementary, orbits for a shared purpose, under shared control. Satellite constellations have been proposed and implemented for use in communications, including networking. Constellations have also been used for geodesy and navigation (the Global Positioning System [Kruesi, 1996] and Glonass [Börjesson, et al., 1999]), for remote sensing, and for other scientific applications. The 1990s were perhaps the public heyday of satellite constellations. In that decade several commercial satellite constellation networks were 13 14 INTERNETWORKING AND COMPUTING OVER SATELLITE NETWORKS constructed and came into operation, while a large number of other schemes were proposed commercially to use available frequency bands, then loudly hyped and later quietly scaled back or dropped. -
Flying Constellations in the Cloud
SSC17-V-07 Flying Constellations in the Cloud Chris Beam Kratos Technology & Training Solutions, Inc. 980 Technology Court, Colorado Springs, CO 80915; 719-472-3495 [email protected] ABSTRACT The space industry is in the midst of technological upheaval involving the proliferation of small satellites and the commercialization of cloud computing as a service. The proliferation of small satellites is made possible by cube sat standards, normalized small satellites launch vehicles, and continued miniaturization of electronics. The small satellite revolution has created new business, science and defense based opportunities resulting in new proposals for sizeable small satellite constellations. Similarly cloud computing as a service, has made possible the advent of high performance computing platforms and the emergence of commodity virtual machine technology. Hundreds of cloud computing service providers have emerged including Amazon, Microsoft, IBM, and HP. At the convergence of these two technological upheavals is an opportunity, perhaps even a mandate, to transition traditional satellite group processing from dedicated operations centers to cloud computing centers. By utilizing virtual machine technology, Kratos has hosted a software based ground system with a significantly smaller footprint than traditional ground systems. While this is a step in the right direction and works well for a single satellite or small constellation, the reality is a 1,000 constellation of small satellites is very possible in today’s industry and traditional ground processing resources may not be viable solutions. As a research initiative, Kratos used Amazon cloud computing services to simulate the deployment and operations of a large fleet operations center capable of supporting 1,000 spacecraft with 30 simultaneous contacts and 100 users. -
Quarterly Launch Report
Commercial Space Transportation QUARTERLY LAUNCH REPORT Featuring the launch results from the previous quarter and forecasts for the next two quarters 1st Quarter 1998 U n i t e d S t a t e s D e p a r t m e n t o f T r a n s p o r t a t i o n • F e d e r a l A v i a t i o n A d m i n i s t r a t i o n A s s o c i a t e A d m i n i s t r a t o r f o r C o m m e r c i a l S p a c e T r a n s p o r t a t i o n QUARTERLY LAUNCH REPORT 1 1ST QUARTER 1998 REPORT Objectives This report summarizes recent and scheduled worldwide commercial, civil, and military orbital space launch events. Scheduled launches listed in this report are vehicle/payload combinations that have been identified in open sources, including industry references, company manifests, periodicals, and government documents. Note that such dates are subject to change. This report highlights commercial launch activities, classifying commercial launches as one or more of the following: • Internationally competed launch events (i.e., launch opportunities considered available in principle to competitors in the international launch services market), • Any launches licensed by the Office of the Associate Administrator for Commercial Space Transportation of the Federal Aviation Administration under U.S. -
Dot 12526 DS1.Pdf
1997 LEO COMMERCIAL MARKET PROJECTIONS EXECUTIVE SUMMARY PROJECTED SATELLITE DEMAND Based on the information provided in this report, the Federal Aviation Administration’s Associate Administrator for Commercial Space Transportation (AST) has developed two scenarios describing LEO satellite and launch services demand in the 1997 to 2006 time frame: a “modest growth” scenario and a “high growth” scenario. This approach is similar to the one used to prepare the 1996 LEO Commercial Market Projections report. The modest growth scenario is based on relatively conservative assumptions regarding market demand and is considered to be more likely than the high growth scenario. · Modest Growth: AST projects that four big LEO (including MEO) and two little LEO systems will be deployed from 1997 to 2006. · High Growth: AST projects that five big LEO systems, one broadband LEO (formerly referred to as a “mega” LEO), and three little LEOs will be deployed from 1997 to 2006. It appears that demand in the commercial remote sensing market will be capable of supporting as many as four of the proposed ventures to provide commercial high-resolution imagery (containing between one and four satellites each). Thus, commercial remote sensing ventures — along with a steady requirement for commercial launch of scientific and microgravity payloads — could represent a secondary source of demand for LEO satellites and launches. PROJECTED LAUNCH DEMAND Based on AST’s satellite demand projections, the demand for commercial launches to LEO for the “modest growth” scenario should be 9 to 14 annual medium-to-large-class launches (payloads greater than 10,000 lbs.) through the year 2000, decreasing to 2 to 4 launches per year from 2001 to 2002, surging to 11 to 14 per year in 2003 to 2004, and dropping to 4 to 6 per year for the remainder of the forecast period. -
FCC-21-48A1.Pdf
Federal Communications Commission FCC 21-48 Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of ) ) Space Exploration Holdings, LLC ) IBFS File No. SAT-MOD-20200417- ) 00037 Request for Modification of the Authorization ) for the SpaceX NGSO Satellite System ) Call Signs S2983 and S3018 ORDER AND AUTHORIZATION AND ORDER ON RECONSIDERATION Adopted: April 23, 2021 Released: April 27, 2021 By the Commission: TABLE OF CONTENTS Heading Paragraph # I. INTRODUCTION .................................................................................................................................. 1 II. BACKGROUND .................................................................................................................................... 2 III. DISCUSSION ........................................................................................................................................ 7 A. Public Interest Determination .......................................................................................................... 8 B. Radiofrequency Interference .......................................................................................................... 14 1. Interference to Other NGSO Systems and Processing Round Placement ............................... 15 a. Modifications and the Significant Interference Standard ................................................. 16 b. Analysis of Overall NGSO Interference Environment ..................................................... 19 2. Interference into