Beamforming for heterogeneous cloud radio access network
To overcome the problem that previous researches for heterogeneous cloud radio access network (H-CRAN) mainly focus on single macro cell,and only considered the intracell interference in the one macro cell,while the inter cell interferences among different macro cells are neglected,H-CRAN with multi...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2019-08-01
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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.2019170/ |
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| _version_ | 1841539340840206336 |
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| author | Jiakuo ZUO Longxiang YANG Nan BAO |
| author_facet | Jiakuo ZUO Longxiang YANG Nan BAO |
| author_sort | Jiakuo ZUO |
| collection | DOAJ |
| description | To overcome the problem that previous researches for heterogeneous cloud radio access network (H-CRAN) mainly focus on single macro cell,and only considered the intracell interference in the one macro cell,while the inter cell interferences among different macro cells are neglected,H-CRAN with multiple macro-cells was studied,and the objective was to maximize system sum-rate through jointly optimizing the beamforming vectors of macro base stations (MBS) and remote radio heads (RRH).Based on alternating optimization and Lagrangian dual method,a joint MBS and RRH beamforming algorithm was proposed.The original problem was first divided into two subproblems.Then,the two sub-problem were solved alternately to obtain the final solutions of the original problem.In addition,the closed expression solutions of the two sub-problem were derived based on Lagrangian dual method.The proposed algorithm was compared with some beamforming algorithms in the simulation.The experimental results demonstrate the proposed algorithm has a better performance in improving the sum-rate of H-CRAN. |
| format | Article |
| id | doaj-art-3feb7b629b8a4dc99a0503f92f3044e7 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2019-08-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-3feb7b629b8a4dc99a0503f92f3044e72025-01-14T07:17:26ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2019-08-0140455359728799Beamforming for heterogeneous cloud radio access networkJiakuo ZUOLongxiang YANGNan BAOTo overcome the problem that previous researches for heterogeneous cloud radio access network (H-CRAN) mainly focus on single macro cell,and only considered the intracell interference in the one macro cell,while the inter cell interferences among different macro cells are neglected,H-CRAN with multiple macro-cells was studied,and the objective was to maximize system sum-rate through jointly optimizing the beamforming vectors of macro base stations (MBS) and remote radio heads (RRH).Based on alternating optimization and Lagrangian dual method,a joint MBS and RRH beamforming algorithm was proposed.The original problem was first divided into two subproblems.Then,the two sub-problem were solved alternately to obtain the final solutions of the original problem.In addition,the closed expression solutions of the two sub-problem were derived based on Lagrangian dual method.The proposed algorithm was compared with some beamforming algorithms in the simulation.The experimental results demonstrate the proposed algorithm has a better performance in improving the sum-rate of H-CRAN.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019170/heterogeneous cloud radio access networkbeamformingalternating optimizationmulti-antenna technology |
| spellingShingle | Jiakuo ZUO Longxiang YANG Nan BAO Beamforming for heterogeneous cloud radio access network Tongxin xuebao heterogeneous cloud radio access network beamforming alternating optimization multi-antenna technology |
| title | Beamforming for heterogeneous cloud radio access network |
| title_full | Beamforming for heterogeneous cloud radio access network |
| title_fullStr | Beamforming for heterogeneous cloud radio access network |
| title_full_unstemmed | Beamforming for heterogeneous cloud radio access network |
| title_short | Beamforming for heterogeneous cloud radio access network |
| title_sort | beamforming for heterogeneous cloud radio access network |
| topic | heterogeneous cloud radio access network beamforming alternating optimization multi-antenna technology |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019170/ |
| work_keys_str_mv | AT jiakuozuo beamformingforheterogeneouscloudradioaccessnetwork AT longxiangyang beamformingforheterogeneouscloudradioaccessnetwork AT nanbao beamformingforheterogeneouscloudradioaccessnetwork |