NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing
With the fast development of giant LEO constellations, the effective spectrum utilization has been regarded as one of the key orientations for satellite communications. This paper focuses on improving the spectrum utilization efficiency of satellite communications by proposing a non-continuous ortho...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/10/3800 |
| _version_ | 1797495700448083968 |
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| author | Yong Wang Hehao Niu Qingsong Zhao Lei Wang Yue Gao Zhi Lin |
| author_facet | Yong Wang Hehao Niu Qingsong Zhao Lei Wang Yue Gao Zhi Lin |
| author_sort | Yong Wang |
| collection | DOAJ |
| description | With the fast development of giant LEO constellations, the effective spectrum utilization has been regarded as one of the key orientations for satellite communications. This paper focuses on improving the spectrum utilization efficiency of satellite communications by proposing a non-continuous orthogonal frequency division multiplexing (NC-OFDM) method. Based on the models of NC-OFDM system, we first propose a sub-carrier allocation method by using spectrum sensing to efficiently perceive and utilize the spectrum holes in the satellite communication system. Then, a hybrid genetic particle swarm optimization method is adopted to allocate the channel resources effectively. Finally, simulation results verify that the proposed algorithm can significantly improve the spectrum efficiency of satellite communications. |
| first_indexed | 2024-03-10T01:53:19Z |
| format | Article |
| id | doaj.art-c8583f698b2145db844a6c02e1929aba |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T01:53:19Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c8583f698b2145db844a6c02e1929aba2023-11-23T13:01:25ZengMDPI AGSensors1424-82202022-05-012210380010.3390/s22103800NC-OFDM Satellite Communication Based on Compressed Spectrum SensingYong Wang0Hehao Niu1Qingsong Zhao2Lei Wang3Yue Gao4Zhi Lin5College of Electronic Countermeasure, National University of Defence Technology, Hefei 230037, ChinaCollege of Electronic Countermeasure, National University of Defence Technology, Hefei 230037, ChinaCollege of Electronic Countermeasure, National University of Defence Technology, Hefei 230037, ChinaCollege of Electronic Countermeasure, National University of Defence Technology, Hefei 230037, ChinaSchool of Computer Science, Fudan University, Shanghai 200433, ChinaCollege of Electronic Countermeasure, National University of Defence Technology, Hefei 230037, ChinaWith the fast development of giant LEO constellations, the effective spectrum utilization has been regarded as one of the key orientations for satellite communications. This paper focuses on improving the spectrum utilization efficiency of satellite communications by proposing a non-continuous orthogonal frequency division multiplexing (NC-OFDM) method. Based on the models of NC-OFDM system, we first propose a sub-carrier allocation method by using spectrum sensing to efficiently perceive and utilize the spectrum holes in the satellite communication system. Then, a hybrid genetic particle swarm optimization method is adopted to allocate the channel resources effectively. Finally, simulation results verify that the proposed algorithm can significantly improve the spectrum efficiency of satellite communications.https://www.mdpi.com/1424-8220/22/10/3800NC-OFDMsatellite communicationscompressed spectrumhybrid genetic algorithm particle swarm optimization |
| spellingShingle | Yong Wang Hehao Niu Qingsong Zhao Lei Wang Yue Gao Zhi Lin NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing Sensors NC-OFDM satellite communications compressed spectrum hybrid genetic algorithm particle swarm optimization |
| title | NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing |
| title_full | NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing |
| title_fullStr | NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing |
| title_full_unstemmed | NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing |
| title_short | NC-OFDM Satellite Communication Based on Compressed Spectrum Sensing |
| title_sort | nc ofdm satellite communication based on compressed spectrum sensing |
| topic | NC-OFDM satellite communications compressed spectrum hybrid genetic algorithm particle swarm optimization |
| url | https://www.mdpi.com/1424-8220/22/10/3800 |
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