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System Design of an S-Band Network of Distributed Nanosatellites
Citation key Yoon.2013.DLRK.SNET
Author Yoon, Zizung and Frese, Walter and Bukmaier, Alexander and Briess, Klaus
Year 2013
ISSN 1868-2502
DOI 10.1007/s12567-013-0058-1
Journal CEAS Space Journal
Volume 6
Number 1
Month March
Publisher Springer
Abstract The paper presents the mission and system design of the S-Net mission, which consists of four nanosatellites to demonstrate intersatellite communication in S-band. The goal is to demonstrate multipoint to multipoint communication with high data rates and optimized communication protocols to push further the technological boundary of nanosatellites. To overcome the cross-communication limitations of a nanosatellite, the Technical University of Berlin developed an S-band (2.0-2.3 GHz) transceiver with 100 kbps crosslink and 1 Mbps downlink capability suitable for nanosatellites. Modern transmission techniques such as Adaptive Modulation and Coding (AMC) with Turbo and convolutional coding and up to APSK8 were implemented and tested on ground. The transceiver accommodates the physical layer and data link layer while the satellite controller is responsible for the network layer. Each nanosatellite will be equipped with the above mentioned S-band transceiver. Hence a mission analysis as well as the design overview of the space segment and ground segment will be described. Different network architecture and corresponding routing algorithm will be demonstrated and verified within the mission.
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