Caching strategy based on transmission delay for D2D cooperative edge caching system
To meet the requirements of 5G system with low delay and high reliability, for a single-caching D2D cooperative edge caching system, an optimization of the caching strategy based on transmission delay was proposed.The dynamic distributions of requesting users and idle users were modeled as the indep...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2021-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021042/ |
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| _version_ | 1841539316696743936 |
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| author | Yan CAI Fan WU Hongbo ZHU |
| author_facet | Yan CAI Fan WU Hongbo ZHU |
| author_sort | Yan CAI |
| collection | DOAJ |
| description | To meet the requirements of 5G system with low delay and high reliability, for a single-caching D2D cooperative edge caching system, an optimization of the caching strategy based on transmission delay was proposed.The dynamic distributions of requesting users and idle users were modeled as the independent homogeneous poisson point process (HPPP) utilizing the stochastic geometry theory.Comprehensively considering the content popularity, user location information, device transmission power and interference, the relationship between the average transmission delay of user and the cache probability distribution was derived.Taking the average transmission delay as the objective function, the optimization problem was established, and a low complexity iterative algorithm was proposed to obtain the cache strategy with sub-optimal average transmission delay.Simulation results demonstrate that the proposed optimization cache strategy is superior to several common cache strategies in terms of transmission delay. |
| format | Article |
| id | doaj-art-e83fd076a6f84046bcb681ffbc40b06b |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2021-03-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-e83fd076a6f84046bcb681ffbc40b06b2025-01-14T07:21:52ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2021-03-014218318959741043Caching strategy based on transmission delay for D2D cooperative edge caching systemYan CAIFan WUHongbo ZHUTo meet the requirements of 5G system with low delay and high reliability, for a single-caching D2D cooperative edge caching system, an optimization of the caching strategy based on transmission delay was proposed.The dynamic distributions of requesting users and idle users were modeled as the independent homogeneous poisson point process (HPPP) utilizing the stochastic geometry theory.Comprehensively considering the content popularity, user location information, device transmission power and interference, the relationship between the average transmission delay of user and the cache probability distribution was derived.Taking the average transmission delay as the objective function, the optimization problem was established, and a low complexity iterative algorithm was proposed to obtain the cache strategy with sub-optimal average transmission delay.Simulation results demonstrate that the proposed optimization cache strategy is superior to several common cache strategies in terms of transmission delay.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021042/mobile edge networkD2D cooperative cachingcontent popularitydistribution of caching probabilitytransmission delay |
| spellingShingle | Yan CAI Fan WU Hongbo ZHU Caching strategy based on transmission delay for D2D cooperative edge caching system Tongxin xuebao mobile edge network D2D cooperative caching content popularity distribution of caching probability transmission delay |
| title | Caching strategy based on transmission delay for D2D cooperative edge caching system |
| title_full | Caching strategy based on transmission delay for D2D cooperative edge caching system |
| title_fullStr | Caching strategy based on transmission delay for D2D cooperative edge caching system |
| title_full_unstemmed | Caching strategy based on transmission delay for D2D cooperative edge caching system |
| title_short | Caching strategy based on transmission delay for D2D cooperative edge caching system |
| title_sort | caching strategy based on transmission delay for d2d cooperative edge caching system |
| topic | mobile edge network D2D cooperative caching content popularity distribution of caching probability transmission delay |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021042/ |
| work_keys_str_mv | AT yancai cachingstrategybasedontransmissiondelayford2dcooperativeedgecachingsystem AT fanwu cachingstrategybasedontransmissiondelayford2dcooperativeedgecachingsystem AT hongbozhu cachingstrategybasedontransmissiondelayford2dcooperativeedgecachingsystem |