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A power and time efficient radio architecture for LDACS1 air-to-ground communication
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Shreejith, Shanker, Ambede, Abhishek, Vinod, A. P. and Fahmy, Suhaib A. (2016) A power and time efficient radio architecture for LDACS1 air-to-ground communication. In: Digital Avionics Systems Conference, Sacramento, CA, 25 - 29 Sep 2016. Published in: Proceedings of the Digital Avionics Systems Conference doi:10.1109/DASC.2016.7778043 ISSN 2155-7209.
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Official URL: https://doi.org/10.1109/DASC.2016.7778043
Abstract
L-band Digital Aeronautical Communication System (LDACS) is an emerging standard that aims at enhancing air traffic management by transitioning the traditional analog aeronautical communication systems to the superior and highly efficient digital domain. The standard places stringent requirements on the communication channels to allow them to coexist with critical L-band systems, requiring complex processing and filters in baseband. Approaches based on cognitive radio are also proposed since this allows tremendous increase in communication capacity and spectral efficiency. This requires high computational capability in airborne vehicles that can perform the complex filtering and masking, along with tasks associated with cognitive radio systems like spectrum sensing and baseband adaptation, while consuming very less power. This paper proposes a radio architecture based on new generation FPGAs that offers advanced capabilities like partial reconfiguration. The proposed architecture allows non-concurrent baseband modules to be dynamically loaded only when they are required, resulting in improved energy efficiency, without sacrificing performance. We evaluate the case of non-concurrent spectrum sensing logic and transmission filters on our cognitive radio platform based on Xilinx Zynq, and show that our approach results in 28.3% reduction in DSP utilisation leading to lower energy consumption at run-time.
Item Type: | Conference Item (Paper) | ||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Library of Congress Subject Headings (LCSH): | Aeronautical radio stations, Air traffic control, Cognitive radio networks, Field programmable gate arrays | ||||||
Journal or Publication Title: | Proceedings of the Digital Avionics Systems Conference | ||||||
Publisher: | IEEE | ||||||
ISSN: | 2155-7209 | ||||||
Official Date: | 12 December 2016 | ||||||
Dates: |
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DOI: | 10.1109/DASC.2016.7778043 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 9 August 2016 | ||||||
Date of first compliant Open Access: | 9 August 2016 | ||||||
Conference Paper Type: | Paper | ||||||
Title of Event: | Digital Avionics Systems Conference | ||||||
Type of Event: | Conference | ||||||
Location of Event: | Sacramento, CA | ||||||
Date(s) of Event: | 25 - 29 Sep 2016 | ||||||
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