Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels
Since it is very difficult to compute the sum rates capacity of Gaussian MIMO broadcast channels directly by using dirty paper coding approach,an iterative water-filling algorithm is proposed to obtain the sum capacity bound for multi-access channel and a suboptimal transmission policy to achieve th...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2006-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74666958/ |
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| _version_ | 1841537331764396032 |
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| author | PAN Cheng-kang1 CAI Yue-ming1 XU You-yun1 ZHANG Hua-ping2 |
| author_facet | PAN Cheng-kang1 CAI Yue-ming1 XU You-yun1 ZHANG Hua-ping2 |
| author_sort | PAN Cheng-kang1 |
| collection | DOAJ |
| description | Since it is very difficult to compute the sum rates capacity of Gaussian MIMO broadcast channels directly by using dirty paper coding approach,an iterative water-filling algorithm is proposed to obtain the sum capacity bound for multi-access channel and a suboptimal transmission policy to achieve the capacity bound is derived from the algorithm.Based on the duality of multiple-access and broadcast channels,the capacity bound and transmission policy in multi-access channels are mapped into the broadcast channel.Numerical results show that the proposed iterative algorithm is simple and effective to calculate the sum capacity bound,and the capacity achieved by the transmission policy is very close to the theoretical bound.This policy is quite considerable for downlink transmission of MIMO systems. |
| format | Article |
| id | doaj-art-c3604cab2ee2466abba0fd171855e66d |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2006-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-c3604cab2ee2466abba0fd171855e66d2025-01-14T08:39:29ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2006-01-01525874666958Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channelsPAN Cheng-kang1CAI Yue-ming1XU You-yun1ZHANG Hua-ping2Since it is very difficult to compute the sum rates capacity of Gaussian MIMO broadcast channels directly by using dirty paper coding approach,an iterative water-filling algorithm is proposed to obtain the sum capacity bound for multi-access channel and a suboptimal transmission policy to achieve the capacity bound is derived from the algorithm.Based on the duality of multiple-access and broadcast channels,the capacity bound and transmission policy in multi-access channels are mapped into the broadcast channel.Numerical results show that the proposed iterative algorithm is simple and effective to calculate the sum capacity bound,and the capacity achieved by the transmission policy is very close to the theoretical bound.This policy is quite considerable for downlink transmission of MIMO systems.http://www.joconline.com.cn/zh/article/74666958/MIMObroadcast channelmulti-access channelchannel capacityDPC |
| spellingShingle | PAN Cheng-kang1 CAI Yue-ming1 XU You-yun1 ZHANG Hua-ping2 Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels Tongxin xuebao MIMO broadcast channel multi-access channel channel capacity DPC |
| title | Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels |
| title_full | Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels |
| title_fullStr | Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels |
| title_full_unstemmed | Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels |
| title_short | Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels |
| title_sort | approach towards the achievable sum rates capacity of gaussian mimo broadcast channels |
| topic | MIMO broadcast channel multi-access channel channel capacity DPC |
| url | http://www.joconline.com.cn/zh/article/74666958/ |
| work_keys_str_mv | AT panchengkang1 approachtowardstheachievablesumratescapacityofgaussianmimobroadcastchannels AT caiyueming1 approachtowardstheachievablesumratescapacityofgaussianmimobroadcastchannels AT xuyouyun1 approachtowardstheachievablesumratescapacityofgaussianmimobroadcastchannels AT zhanghuaping2 approachtowardstheachievablesumratescapacityofgaussianmimobroadcastchannels |