Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systems
An adaptive transmission scheme combining orthogonal space-time block code and eigen-beamforming was proposed for multiuser MIMO-OFDM downlinks. The scheme uses delayed channel state information from receivers to maximize the throughput. An adaptive subcarrier allocation criterion and corresponding...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2008-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74655476/ |
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| _version_ | 1841537556797194240 |
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| author | LIU Min ZHANG Xiao-fei XU Da-zhuan |
| author_facet | LIU Min ZHANG Xiao-fei XU Da-zhuan |
| author_sort | LIU Min |
| collection | DOAJ |
| description | An adaptive transmission scheme combining orthogonal space-time block code and eigen-beamforming was proposed for multiuser MIMO-OFDM downlinks. The scheme uses delayed channel state information from receivers to maximize the throughput. An adaptive subcarrier allocation criterion and corresponding bit-loading algorithm were pre-sented. Simulation results show that the scheme can make full use of delayed channel state information to achieve much more throughput than non-adaptive schemes. A sub-optimal bit-loading algorithm was also presented,which is non-iterative and requires small computation. Simulation results demonstrate that the incurred throughput loss is negligible. |
| format | Article |
| id | doaj-art-92b50030ba164949abdab45bffa88a8b |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2008-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-92b50030ba164949abdab45bffa88a8b2025-01-14T08:32:52ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2008-01-01192574655476Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systemsLIU MinZHANG Xiao-feiXU Da-zhuanAn adaptive transmission scheme combining orthogonal space-time block code and eigen-beamforming was proposed for multiuser MIMO-OFDM downlinks. The scheme uses delayed channel state information from receivers to maximize the throughput. An adaptive subcarrier allocation criterion and corresponding bit-loading algorithm were pre-sented. Simulation results show that the scheme can make full use of delayed channel state information to achieve much more throughput than non-adaptive schemes. A sub-optimal bit-loading algorithm was also presented,which is non-iterative and requires small computation. Simulation results demonstrate that the incurred throughput loss is negligible.http://www.joconline.com.cn/zh/article/74655476/orthogonal frequency-division multiplexingmultiple-input-multiple-outputsubcarrier allocationbit-loading algorithmdelayed channel state information |
| spellingShingle | LIU Min ZHANG Xiao-fei XU Da-zhuan Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systems Tongxin xuebao orthogonal frequency-division multiplexing multiple-input-multiple-output subcarrier allocation bit-loading algorithm delayed channel state information |
| title | Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systems |
| title_full | Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systems |
| title_fullStr | Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systems |
| title_full_unstemmed | Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systems |
| title_short | Adaptive transmission scheme with delayed channel state information for multiuser MIMO-OFDM systems |
| title_sort | adaptive transmission scheme with delayed channel state information for multiuser mimo ofdm systems |
| topic | orthogonal frequency-division multiplexing multiple-input-multiple-output subcarrier allocation bit-loading algorithm delayed channel state information |
| url | http://www.joconline.com.cn/zh/article/74655476/ |
| work_keys_str_mv | AT liumin adaptivetransmissionschemewithdelayedchannelstateinformationformultiusermimoofdmsystems AT zhangxiaofei adaptivetransmissionschemewithdelayedchannelstateinformationformultiusermimoofdmsystems AT xudazhuan adaptivetransmissionschemewithdelayedchannelstateinformationformultiusermimoofdmsystems |