Cooperative caching algorithm of UAV and user in UAV-assisted cellular network
Aiming at the problem of mass data content transmission and limited wireless backhaul resource of UAV in UAV-assisted cellular network,a cooperative caching algorithm for cache-enabled UAV and user was proposed.By deploying caches on UAV and user device,the popular content requested by user was cach...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2020-09-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020029/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841539274826055680 |
|---|---|
| author | Tiankui ZHANG Chao CHEN Ziduan WANG Dingcheng YANG |
| author_facet | Tiankui ZHANG Chao CHEN Ziduan WANG Dingcheng YANG |
| author_sort | Tiankui ZHANG |
| collection | DOAJ |
| description | Aiming at the problem of mass data content transmission and limited wireless backhaul resource of UAV in UAV-assisted cellular network,a cooperative caching algorithm for cache-enabled UAV and user was proposed.By deploying caches on UAV and user device,the popular content requested by user was cached and delivered,which alleviated the backhaul resource and energy consumption of UAV,reduced the traffic load and user delay.A joint optimization problem of UAV and user caching was established with the goal of minimizing user content acquisition delay,and decomposed into UAV caching sub-problem and user caching sub-problem,which were solved based on alternating direction method of multiplier and global greedy algorithm respectively.The iterative way was used to obtain convergent optimization result,and the cooperative caching of UAV and user was realized.Simulation results show that the proposed algorithm can effectively reduce user content acquisition delay and improve system performance. |
| format | Article |
| id | doaj-art-519ca910d1cb4ed7bfa4c9ada8f30ded |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2020-09-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-519ca910d1cb4ed7bfa4c9ada8f30ded2025-01-14T07:19:54ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2020-09-014113013859737367Cooperative caching algorithm of UAV and user in UAV-assisted cellular networkTiankui ZHANGChao CHENZiduan WANGDingcheng YANGAiming at the problem of mass data content transmission and limited wireless backhaul resource of UAV in UAV-assisted cellular network,a cooperative caching algorithm for cache-enabled UAV and user was proposed.By deploying caches on UAV and user device,the popular content requested by user was cached and delivered,which alleviated the backhaul resource and energy consumption of UAV,reduced the traffic load and user delay.A joint optimization problem of UAV and user caching was established with the goal of minimizing user content acquisition delay,and decomposed into UAV caching sub-problem and user caching sub-problem,which were solved based on alternating direction method of multiplier and global greedy algorithm respectively.The iterative way was used to obtain convergent optimization result,and the cooperative caching of UAV and user was realized.Simulation results show that the proposed algorithm can effectively reduce user content acquisition delay and improve system performance.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020029/edge cachingUAV communicationUAV-assisted cellular networkcooperative caching |
| spellingShingle | Tiankui ZHANG Chao CHEN Ziduan WANG Dingcheng YANG Cooperative caching algorithm of UAV and user in UAV-assisted cellular network Tongxin xuebao edge caching UAV communication UAV-assisted cellular network cooperative caching |
| title | Cooperative caching algorithm of UAV and user in UAV-assisted cellular network |
| title_full | Cooperative caching algorithm of UAV and user in UAV-assisted cellular network |
| title_fullStr | Cooperative caching algorithm of UAV and user in UAV-assisted cellular network |
| title_full_unstemmed | Cooperative caching algorithm of UAV and user in UAV-assisted cellular network |
| title_short | Cooperative caching algorithm of UAV and user in UAV-assisted cellular network |
| title_sort | cooperative caching algorithm of uav and user in uav assisted cellular network |
| topic | edge caching UAV communication UAV-assisted cellular network cooperative caching |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020029/ |
| work_keys_str_mv | AT tiankuizhang cooperativecachingalgorithmofuavanduserinuavassistedcellularnetwork AT chaochen cooperativecachingalgorithmofuavanduserinuavassistedcellularnetwork AT ziduanwang cooperativecachingalgorithmofuavanduserinuavassistedcellularnetwork AT dingchengyang cooperativecachingalgorithmofuavanduserinuavassistedcellularnetwork |