Joint time-frequency interference alignment in the frequency-selective Gaussian interference channel
To make up for the limitation that the traditional interference alignment can only align the signal in one dimensional domain,a novel joint time-frequency interference alignment scheme was put forward in the frequency-selective Gaussian interference channel（GIC）.After the frequency-selective GIC was...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2011-01-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/74419111/ |
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| _version_ | 1841537799670464512 |
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| author | JING Zhen-hai1 BAI Bao-ming1 MA Xiao3 |
| author_facet | JING Zhen-hai1 BAI Bao-ming1 MA Xiao3 |
| author_sort | JING Zhen-hai1 |
| collection | DOAJ |
| description | To make up for the limitation that the traditional interference alignment can only align the signal in one dimensional domain,a novel joint time-frequency interference alignment scheme was put forward in the frequency-selective Gaussian interference channel（GIC）.After the frequency-selective GIC was changed into a set of parallel GICs,a set of time-frequency alignment matrices were employed which aligned the interference signal not only in time domain but also in frequency domain.An algorithm for calculating the time-frequency alignment matrices was presented based on the convex optimization.Computer simulations show that the joint time-frequency interference alignment can obtain the same performance as the traditional interference alignment while the joint time-frequency interference alignment can shorten the decoding time or reduce the occupation of the frequency resource.The joint time-frequency interference alignment scheme is an extension of the traditional interference alignment and provides a more flexible resource allocation approach between time domain and frequency domain. |
| format | Article |
| id | doaj-art-808f2a9f4db34baa9102d0376081ebf3 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-808f2a9f4db34baa9102d0376081ebf32025-01-14T08:23:26ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-01-013216116674419111Joint time-frequency interference alignment in the frequency-selective Gaussian interference channelJING Zhen-hai1BAI Bao-ming1MA Xiao3To make up for the limitation that the traditional interference alignment can only align the signal in one dimensional domain,a novel joint time-frequency interference alignment scheme was put forward in the frequency-selective Gaussian interference channel（GIC）.After the frequency-selective GIC was changed into a set of parallel GICs,a set of time-frequency alignment matrices were employed which aligned the interference signal not only in time domain but also in frequency domain.An algorithm for calculating the time-frequency alignment matrices was presented based on the convex optimization.Computer simulations show that the joint time-frequency interference alignment can obtain the same performance as the traditional interference alignment while the joint time-frequency interference alignment can shorten the decoding time or reduce the occupation of the frequency resource.The joint time-frequency interference alignment scheme is an extension of the traditional interference alignment and provides a more flexible resource allocation approach between time domain and frequency domain.http://www.joconline.com.cn/zh/article/74419111/interference channelinterference alignmentoptimization methoddegree of freedom |
| spellingShingle | JING Zhen-hai1 BAI Bao-ming1 MA Xiao3 Joint time-frequency interference alignment in the frequency-selective Gaussian interference channel Tongxin xuebao interference channel interference alignment optimization method degree of freedom |
| title | Joint time-frequency interference alignment in the frequency-selective Gaussian interference channel |
| title_full | Joint time-frequency interference alignment in the frequency-selective Gaussian interference channel |
| title_fullStr | Joint time-frequency interference alignment in the frequency-selective Gaussian interference channel |
| title_full_unstemmed | Joint time-frequency interference alignment in the frequency-selective Gaussian interference channel |
| title_short | Joint time-frequency interference alignment in the frequency-selective Gaussian interference channel |
| title_sort | joint time frequency interference alignment in the frequency selective gaussian interference channel |
| topic | interference channel interference alignment optimization method degree of freedom |
| url | http://www.joconline.com.cn/zh/article/74419111/ |
| work_keys_str_mv | AT jingzhenhai1 jointtimefrequencyinterferencealignmentinthefrequencyselectivegaussianinterferencechannel AT baibaoming1 jointtimefrequencyinterferencealignmentinthefrequencyselectivegaussianinterferencechannel AT maxiao3 jointtimefrequencyinterferencealignmentinthefrequencyselectivegaussianinterferencechannel |