Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environment
Aiming at the problem that multi-user channel estimation assisted by reconfigurable intelligent surface (RIS) in the uplink Internet of vehicles environment, a location assisted compressive sensing channel estimation algorithm was proposed.Based on the location information of the communication equip...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2022-08-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022150/ |
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| _version_ | 1841539972643946496 |
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| author | Rong ZENG Xiao HANG |
| author_facet | Rong ZENG Xiao HANG |
| author_sort | Rong ZENG |
| collection | DOAJ |
| description | Aiming at the problem that multi-user channel estimation assisted by reconfigurable intelligent surface (RIS) in the uplink Internet of vehicles environment, a location assisted compressive sensing channel estimation algorithm was proposed.Based on the location information of the communication equipment, a single RIS-assisted single-user communication model was built, and the optimal phase shift matrix was derived according to the logical relationship between the beam angle of departure (AOD) and the angle of arrival (AOA).The perception matrix was constructed and channel estimation was performed, and finally it was extended to multi-user scenarios and solved iteratively.The optimal RIS phase shift matrix was solved based on the position information obtained by the Internet of vehicles technology, which reduced the additional training overhead of the channel and further reduces the complexity of the channel estimation.Simulation results show that the proposed algorithm based on location information has high channel estimation performance. |
| format | Article |
| id | doaj-art-5aa252c58cf74043a245bfaf0c3e3fe5 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2022-08-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-5aa252c58cf74043a245bfaf0c3e3fe52025-01-14T06:28:59ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2022-08-014314215059392418Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environmentRong ZENGXiao HANGAiming at the problem that multi-user channel estimation assisted by reconfigurable intelligent surface (RIS) in the uplink Internet of vehicles environment, a location assisted compressive sensing channel estimation algorithm was proposed.Based on the location information of the communication equipment, a single RIS-assisted single-user communication model was built, and the optimal phase shift matrix was derived according to the logical relationship between the beam angle of departure (AOD) and the angle of arrival (AOA).The perception matrix was constructed and channel estimation was performed, and finally it was extended to multi-user scenarios and solved iteratively.The optimal RIS phase shift matrix was solved based on the position information obtained by the Internet of vehicles technology, which reduced the additional training overhead of the channel and further reduces the complexity of the channel estimation.Simulation results show that the proposed algorithm based on location information has high channel estimation performance.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022150/reconfigurable intelligent surfaceInternet of vehicleschannel estimationcompressed sensing algorithmbeamforming |
| spellingShingle | Rong ZENG Xiao HANG Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environment Tongxin xuebao reconfigurable intelligent surface Internet of vehicles channel estimation compressed sensing algorithm beamforming |
| title | Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environment |
| title_full | Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environment |
| title_fullStr | Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environment |
| title_full_unstemmed | Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environment |
| title_short | Reconfigurable intelligent surface assist wireless channel estimation algorithm in Internet of vehicles environment |
| title_sort | reconfigurable intelligent surface assist wireless channel estimation algorithm in internet of vehicles environment |
| topic | reconfigurable intelligent surface Internet of vehicles channel estimation compressed sensing algorithm beamforming |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022150/ |
| work_keys_str_mv | AT rongzeng reconfigurableintelligentsurfaceassistwirelesschannelestimationalgorithmininternetofvehiclesenvironment AT xiaohang reconfigurableintelligentsurfaceassistwirelesschannelestimationalgorithmininternetofvehiclesenvironment |