Cooperative content downloading scheme based on D2D multicast communications
Aiming at the content downloading scenario in the network such as cellular network and vehicular network,a cooperative content downloading scheme based on device-to-device multicast communications was proposed to improve the content downloading performance.Such a scheme took advantage of the proximi...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2020-11-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020221/ |
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| _version_ | 1841539256444518400 |
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| author | Lianxin YANG Dan WU Feng YUAN Chao YUE Qinxue FU |
| author_facet | Lianxin YANG Dan WU Feng YUAN Chao YUE Qinxue FU |
| author_sort | Lianxin YANG |
| collection | DOAJ |
| description | Aiming at the content downloading scenario in the network such as cellular network and vehicular network,a cooperative content downloading scheme based on device-to-device multicast communications was proposed to improve the content downloading performance.Such a scheme took advantage of the proximity feature of the content requesters and groups them into disjoint clusters.Firstly,the base station delivered the entire content to a cluster,and each content requester in a cluster downloaded a proportion of the entire content.Then,the content requesters took turns sharing their downloaded content with other content requesters in the same cluster.In this way,the additional resource consumption of content sharing in a cluster was shared by the content requesters in the cluster together.During this process,a pricing-based approach was proposed to motivate these content requesters to cooperate with each other.Such an approach only required the base station to maintain a content downloading price.Based on this,the joint issue of user clustering,link scheduling and power allocation was studied to minimize the total cost of content requesters.To obtain a superior solution with reductive complexity,a joint optimization algorithm was designed based on the coalition formation game.Numerical results show that compared with the traditional non-cooperative scheme,the total cost of content requesters was reduced by 37.15%.Under different numbers of content requesters and cellular users,the proposed scheme is both superior to other benchmark schemes. |
| format | Article |
| id | doaj-art-0e493c7ab27c4639a79d283e7c398d96 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2020-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-0e493c7ab27c4639a79d283e7c398d962025-01-14T07:21:06ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2020-11-0141647359738475Cooperative content downloading scheme based on D2D multicast communicationsLianxin YANGDan WUFeng YUANChao YUEQinxue FUAiming at the content downloading scenario in the network such as cellular network and vehicular network,a cooperative content downloading scheme based on device-to-device multicast communications was proposed to improve the content downloading performance.Such a scheme took advantage of the proximity feature of the content requesters and groups them into disjoint clusters.Firstly,the base station delivered the entire content to a cluster,and each content requester in a cluster downloaded a proportion of the entire content.Then,the content requesters took turns sharing their downloaded content with other content requesters in the same cluster.In this way,the additional resource consumption of content sharing in a cluster was shared by the content requesters in the cluster together.During this process,a pricing-based approach was proposed to motivate these content requesters to cooperate with each other.Such an approach only required the base station to maintain a content downloading price.Based on this,the joint issue of user clustering,link scheduling and power allocation was studied to minimize the total cost of content requesters.To obtain a superior solution with reductive complexity,a joint optimization algorithm was designed based on the coalition formation game.Numerical results show that compared with the traditional non-cooperative scheme,the total cost of content requesters was reduced by 37.15%.Under different numbers of content requesters and cellular users,the proposed scheme is both superior to other benchmark schemes.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020221/content downloadinguser clusteringlink schedulingpower allocationcoalition formation |
| spellingShingle | Lianxin YANG Dan WU Feng YUAN Chao YUE Qinxue FU Cooperative content downloading scheme based on D2D multicast communications Tongxin xuebao content downloading user clustering link scheduling power allocation coalition formation |
| title | Cooperative content downloading scheme based on D2D multicast communications |
| title_full | Cooperative content downloading scheme based on D2D multicast communications |
| title_fullStr | Cooperative content downloading scheme based on D2D multicast communications |
| title_full_unstemmed | Cooperative content downloading scheme based on D2D multicast communications |
| title_short | Cooperative content downloading scheme based on D2D multicast communications |
| title_sort | cooperative content downloading scheme based on d2d multicast communications |
| topic | content downloading user clustering link scheduling power allocation coalition formation |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020221/ |
| work_keys_str_mv | AT lianxinyang cooperativecontentdownloadingschemebasedond2dmulticastcommunications AT danwu cooperativecontentdownloadingschemebasedond2dmulticastcommunications AT fengyuan cooperativecontentdownloadingschemebasedond2dmulticastcommunications AT chaoyue cooperativecontentdownloadingschemebasedond2dmulticastcommunications AT qinxuefu cooperativecontentdownloadingschemebasedond2dmulticastcommunications |