Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channel
For interference networks, the degree of delay (DoD) was proposed to quantify the information delay among traditional interference alignment (IA) schemes.It indicated that networks suffer from the issue of latency caused by IA schemes.Herein, for the MIMO downlink broadcast channel (BC), the partial...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2021-06-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021092/ |
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| _version_ | 1841539281690034176 |
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| author | Jingfu LI Wenjiang FENG Wenshou WANG Weiheng JIANG Chonghai YANG |
| author_facet | Jingfu LI Wenjiang FENG Wenshou WANG Weiheng JIANG Chonghai YANG |
| author_sort | Jingfu LI |
| collection | DOAJ |
| description | For interference networks, the degree of delay (DoD) was proposed to quantify the information delay among traditional interference alignment (IA) schemes.It indicated that networks suffer from the issue of latency caused by IA schemes.Herein, for the MIMO downlink broadcast channel (BC), the partial interference elimination based retrospective interference alignment scheme (PIE-RIA) was put forward.In the scheme, relay technique was adopted to eliminate partial interference signals so that part of desired symbols could be decoded promptly in user sides.Meanwhile, in the last slot, the eliminated signals could be regenerated in base station side with the retrospective interference alignment (RIA) scheme .The simulation results show that PIE-RIA scheme maintains degree of freedom (DoF) gain of RIA scheme and in the meantime, achieves lower DoD than the other schemes. |
| format | Article |
| id | doaj-art-72e9403444764c008d118d501d089819 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2021-06-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-72e9403444764c008d118d501d0898192025-01-14T07:22:08ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2021-06-01429410659741977Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channelJingfu LIWenjiang FENGWenshou WANGWeiheng JIANGChonghai YANGFor interference networks, the degree of delay (DoD) was proposed to quantify the information delay among traditional interference alignment (IA) schemes.It indicated that networks suffer from the issue of latency caused by IA schemes.Herein, for the MIMO downlink broadcast channel (BC), the partial interference elimination based retrospective interference alignment scheme (PIE-RIA) was put forward.In the scheme, relay technique was adopted to eliminate partial interference signals so that part of desired symbols could be decoded promptly in user sides.Meanwhile, in the last slot, the eliminated signals could be regenerated in base station side with the retrospective interference alignment (RIA) scheme .The simulation results show that PIE-RIA scheme maintains degree of freedom (DoF) gain of RIA scheme and in the meantime, achieves lower DoD than the other schemes.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021092/delay sensitive networkretrospective interference alignmentpartial interference eliminationdegree of freedom, degree of delay |
| spellingShingle | Jingfu LI Wenjiang FENG Wenshou WANG Weiheng JIANG Chonghai YANG Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channel Tongxin xuebao delay sensitive network retrospective interference alignment partial interference elimination degree of freedom, degree of delay |
| title | Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channel |
| title_full | Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channel |
| title_fullStr | Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channel |
| title_full_unstemmed | Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channel |
| title_short | Partial interference elimination based retrospective interference alignment scheme in the downlink MIMO broadcast channel |
| title_sort | partial interference elimination based retrospective interference alignment scheme in the downlink mimo broadcast channel |
| topic | delay sensitive network retrospective interference alignment partial interference elimination degree of freedom, degree of delay |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021092/ |
| work_keys_str_mv | AT jingfuli partialinterferenceeliminationbasedretrospectiveinterferencealignmentschemeinthedownlinkmimobroadcastchannel AT wenjiangfeng partialinterferenceeliminationbasedretrospectiveinterferencealignmentschemeinthedownlinkmimobroadcastchannel AT wenshouwang partialinterferenceeliminationbasedretrospectiveinterferencealignmentschemeinthedownlinkmimobroadcastchannel AT weihengjiang partialinterferenceeliminationbasedretrospectiveinterferencealignmentschemeinthedownlinkmimobroadcastchannel AT chonghaiyang partialinterferenceeliminationbasedretrospectiveinterferencealignmentschemeinthedownlinkmimobroadcastchannel |