Abstract
This paper proposes the transmission of beacon signals to alert potential interferers of an ongoing or impending passive sensing measurement. We focus on the interference from Low-Earth Orbiting (LEO) satellites to a radio-telescope. We compare the beacon approach with two versions of Radio Quiet Zones (RQZs): fixed quiet zones on the ground and in the sky, and dynamic quiet zones that vary across satellites. The beacon-assisted approach can potentially exploit channel reciprocity, which accounts for short-term channel variations between the satellite and radio telescope. System considerations associated with beacon design and potential schemes for beacon transmission are discussed. The probability of excessive Radio Frequency Interference (RFI) at the radio telescope (outage probability) and the fraction of active links in the satellite network are used as performance metrics. Numerical simulations compare the performance of the approaches considered, and show that the beacon approach enables more active satellite links relative to quiet zones for a given outage probability.
Original language | English (US) |
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Title of host publication | 2024 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2024 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 249-256 |
Number of pages | 8 |
ISBN (Electronic) | 9798350317640 |
DOIs | |
State | Published - 2024 |
Externally published | Yes |
Event | 2024 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2024 - Washington, United States Duration: May 13 2024 → May 16 2024 |
Publication series
Name | 2024 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2024 |
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Conference
Conference | 2024 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2024 |
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Country/Territory | United States |
City | Washington |
Period | 5/13/24 → 5/16/24 |
Funding
This work was supported by the U.S. National Science Foundation (NSF) through SpectrumX, an NSF spectrum innovation center.
Keywords
- low earth orbit (LEO) constellation
- Radio astronomy
- radio frequency interference (RFI)
- radio quiet zone (RQZ)
ASJC Scopus subject areas
- Computer Networks and Communications
- Signal Processing
- Aerospace Engineering