| Paper Abstract and Keywords |
| Presentation |
2026-03-06 11:00
Radio-over-Free Space Optics based Inter-Satellite Link for Ultra-Dense Satellite Swarms as a Distributed Phased Array
Zhidong Li, Minoru Okada (Naist) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Future space missions envision ultra-dense satellite swarms composed of thousands of pico-satellites operating in close proximity (e.g., 10 cm spacing) to function as a single large-aperture distributed antenna. This research proposes a Radio-over-Free Space Optic (RoFSO) architecture to distribute Radio Frequency (RF) signals and local oscillator references among the satellites. Unlike traditional RF inter-satellite links, the proposed optical system leverages narrow beam divergence to minimize inter-node interference in high-density formations. Furthermore, this study numerically analyses the impact of optical signal degradation on the array's performance. Specifically, simulation results reveal that optical beat noise generated during the photonic mixing process induces phase jitter, which poses a fundamental limit to the beamforming efficiency of the distributed antenna system. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Radio-over-Free Space Optics / Free Space Optical Communication / Inter-Satellite Link / Beat noise / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 50, no. 9, BCT2026-27, pp. 34-38, March 2026. |
| Paper # |
BCT2026-27 |
| Date of Issue |
2026-02-26 (BCT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
BCT IEEE-BT |
| Conference Date |
2026-03-05 - 2026-03-06 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
BCT |
| Conference Code |
2026-03-BCT-BT |
| Language |
English |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Radio-over-Free Space Optics based Inter-Satellite Link for Ultra-Dense Satellite Swarms as a Distributed Phased Array |
| Sub Title (in English) |
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| Keyword(1) |
Radio-over-Free Space Optics |
| Keyword(2) |
Free Space Optical Communication |
| Keyword(3) |
Inter-Satellite Link |
| Keyword(4) |
Beat noise |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Zhidong Li |
| 1st Author's Affiliation |
Nara institute of science and technology (Naist) |
| 2nd Author's Name |
Minoru Okada |
| 2nd Author's Affiliation |
Nara institute of science and technology (Naist) |
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| Speaker |
Author-1 |
| Date Time |
2026-03-06 11:00:00 |
| Presentation Time |
20 minutes |
| Registration for |
BCT |
| Paper # |
BCT2026-27 |
| Volume (vol) |
vol.50 |
| Number (no) |
no.9 |
| Page |
pp.34-38 |
| #Pages |
5 |
| Date of Issue |
2026-02-26 (BCT) |