66
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International Astronautical Congress, Jerusalem, Israel. Copyright ©2015 by the International Astronautical Federation. All rights reserved.
IAC-15- B2.8, YPVF Page 1 of 9
IAC-15-B2.8, YPVF
COMMUNICATION ARCHITECTURE AND INTERNATIONAL POLICY RECOMMENDATIONS
ENABLING THE DEVELOPMENT OF GLOBAL CUBESAT SPACE NETWORKS
Ozan Kara
KOC University, Turkey, okara13@ku.edu.tr
Melanie Brunner
NASA, United States, m.a.brunner@csuohio.edu
Roger Birkeland
Norwegian University of Science and Technology, Norway, roger.birkeland@iet.ntnu.no
Dario Schor
University of Manitoba, Canada, info@darioschor.com
Burak Yağlıoğlu
TUBITAK Uzay, Space Technologies Research Institute, Turkey, burak.yaglioglu@tubitak.gov.tr
Thomas Smith
NASA, United States, trsmith9@illinois.edu
Andreas Hornig
University of Stuttgart, Germany, andreas.hornig@aerospaceresearch.net
Emerging technologies of CubeSat communication and navigation systems enable new approaches such as larger
bandwidths, spectrum and security decrement and high speed communications. In order to create a vantage point,
young professionals and students from the four corners of the earth had performed a comprehensive study at the
2014 Space Generation Congress in Toronto, Canada under "CubeSat Swarms Communication Networks and Policy
Challenges" working group. While potential possibilities are endless for the structure of Cubesat networks, decisions
made amongst the group were based on existing technologies and guidelines. Therefore, the working group discussed
(1) short and long term technical challenges (2) policy requirements, (3) radio communication bandwidth limitations,
(4) data collection and transmission regulations and (5) the standardization of the CubeSat communication system.
Technical challenges for small satellite missions involve limitations of link budgets, the size of the deployable high
gain antennas, optical and laser communication and the restriction of the link budget due to the interferences. In
addition, policy issues have immaturities for frequency allocation and registration complimenting the short lifespan
of CubeSats. The standardization of mission operations enables a space communication network architecture that of
which is similar to the internet, incorporated into CubeSat Swarms. The group suggests a CubeSat network system
architecture including inter-swarm and intra-swarm constellations, optical and laser communications and delay-
tolerant networks (DTN). The proposed CubeSat communication network also consists of inter-swarm constellation
communications along with intra-swarm constellations sustained through four different basic data links, a mother-
daughter satellite framework, and net-neutrality throughout the network. In the meantime, policy regulation
recommendations allow global communication by reducing data downlink time. Governments, as well as service
providers, treat all data used online the same regardless of its origins, platform, and users. The standardization of the
CubeSat network system was formed by operator expectations for high downlink speeds, equal priority for data
transfers, and streamlined registrations. The simplified registration process for CubeSat-Swarms is more efficient by
establishing new baseline legal framework, rules, and standards. This would help all users and operators in this
sector, including entrepreneurs, licensing bodies, and end-users. Saving time for everyone while achieving maximum
efficiency, utilization of the time and results are the end result of proposed system architecture by the working group.
I. INTRODUCTION
The working group “CubeSat Swarms –
Communication Networks and Policy Challenges” has
been established in attachment to the Space Generation
Congress 2014 in Toronto, Canada. The group is
comprised of 21 young space professionals from 15
nations. Its aim was to discuss the current situation and
identify recommendations to both enable and facilitate
sustainable further development in the field of small