Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMO
Cell-free massive multiple-input multiple-output (MIMO) technology uses a large number of access points (AP) to provide efficient communication services for terrestrial users.However, massive APs and users increase the demand for channel state information detection, especially for users with high mo...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2022-08-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022242/ |
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| _version_ | 1841530699576770560 |
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| author | Danhao DENG Chaowei WANG Fan JIANG Weidong WANG |
| author_facet | Danhao DENG Chaowei WANG Fan JIANG Weidong WANG |
| author_sort | Danhao DENG |
| collection | DOAJ |
| description | Cell-free massive multiple-input multiple-output (MIMO) technology uses a large number of access points (AP) to provide efficient communication services for terrestrial users.However, massive APs and users increase the demand for channel state information detection, especially for users with high moving speeds.In order to reduce the consumption of pilot resources, a dual system architecture that integrates unmanned aerial vehicle-assisted (UAV-assisted) communications and cell-free massive MIMO communications was proposed.The architecture was able to predict the movement trajectories of high-speed users and use UAVs to provide them with reliable communications.A UAV trajectory design and user scheduling scheme based on deep reinforcement learning (DRL) was further proposed, which maximized the system sum rate under the premise of satisfying various constraints.Simulation results demonstrate that the proposed scheme is able to predict user trajectories and improve system sum rate compared with existing schemes. |
| format | Article |
| id | doaj-art-be5391f08b7d4646a9f39b3d06960197 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2022-08-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-be5391f08b7d4646a9f39b3d069601972025-01-15T03:00:14ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012022-08-0138374459577794Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMODanhao DENGChaowei WANGFan JIANGWeidong WANGCell-free massive multiple-input multiple-output (MIMO) technology uses a large number of access points (AP) to provide efficient communication services for terrestrial users.However, massive APs and users increase the demand for channel state information detection, especially for users with high moving speeds.In order to reduce the consumption of pilot resources, a dual system architecture that integrates unmanned aerial vehicle-assisted (UAV-assisted) communications and cell-free massive MIMO communications was proposed.The architecture was able to predict the movement trajectories of high-speed users and use UAVs to provide them with reliable communications.A UAV trajectory design and user scheduling scheme based on deep reinforcement learning (DRL) was further proposed, which maximized the system sum rate under the premise of satisfying various constraints.Simulation results demonstrate that the proposed scheme is able to predict user trajectories and improve system sum rate compared with existing schemes.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022242/cell-free massive MIMOUAV-assisted communicationcoordinated air-ground schedulingDRL |
| spellingShingle | Danhao DENG Chaowei WANG Fan JIANG Weidong WANG Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMO Dianxin kexue cell-free massive MIMO UAV-assisted communication coordinated air-ground scheduling DRL |
| title | Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMO |
| title_full | Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMO |
| title_fullStr | Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMO |
| title_full_unstemmed | Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMO |
| title_short | Coordinated air-ground scheduling for UAV-assisted cell-free massive MIMO |
| title_sort | coordinated air ground scheduling for uav assisted cell free massive mimo |
| topic | cell-free massive MIMO UAV-assisted communication coordinated air-ground scheduling DRL |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022242/ |
| work_keys_str_mv | AT danhaodeng coordinatedairgroundschedulingforuavassistedcellfreemassivemimo AT chaoweiwang coordinatedairgroundschedulingforuavassistedcellfreemassivemimo AT fanjiang coordinatedairgroundschedulingforuavassistedcellfreemassivemimo AT weidongwang coordinatedairgroundschedulingforuavassistedcellfreemassivemimo |