Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information
An opportunistic spatio-frequency access (OSFA) strategy for CR-MIMO system was designed.When spectrum holes exist,cognitive service was implemented applying overlay approach.While there was no idle spectrum available,primary transmission mode information (PTMI) and inter-system interference channel...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2012-01-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)01-0038-07/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841539949226098688 |
|---|---|
| author | Zhao LI Jian-dong LI Li-yuan XIAO |
| author_facet | Zhao LI Jian-dong LI Li-yuan XIAO |
| author_sort | Zhao LI |
| collection | DOAJ |
| description | An opportunistic spatio-frequency access (OSFA) strategy for CR-MIMO system was designed.When spectrum holes exist,cognitive service was implemented applying overlay approach.While there was no idle spectrum available,primary transmission mode information (PTMI) and inter-system interference channel information were exploited.And cognitive service was implemented using underlay approach.The method utilizes both spatial correlation and eigenmode transmission gain in spatial resource quality aluation.Consequently,selection diversity of both authorized channel and cognitive eigenmode was achieved.Moreover,PTMI based signal processing reduced the antenna requirement for cognitive system as well as the power loss of cognitive signal.Simulation results indicate that the proposed method could achieve significant improvement of cognitive service and near-optimal cognitive throughput on the premise that no interference is imposed on the primary. |
| format | Article |
| id | doaj-art-e29e165c69aa4952ba301c70de91adc4 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2012-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-e29e165c69aa4952ba301c70de91adc42025-01-14T06:30:51ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2012-01-0133384459659386Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode informationZhao LIJian-dong LILi-yuan XIAOAn opportunistic spatio-frequency access (OSFA) strategy for CR-MIMO system was designed.When spectrum holes exist,cognitive service was implemented applying overlay approach.While there was no idle spectrum available,primary transmission mode information (PTMI) and inter-system interference channel information were exploited.And cognitive service was implemented using underlay approach.The method utilizes both spatial correlation and eigenmode transmission gain in spatial resource quality aluation.Consequently,selection diversity of both authorized channel and cognitive eigenmode was achieved.Moreover,PTMI based signal processing reduced the antenna requirement for cognitive system as well as the power loss of cognitive signal.Simulation results indicate that the proposed method could achieve significant improvement of cognitive service and near-optimal cognitive throughput on the premise that no interference is imposed on the primary.http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)01-0038-07/cognitive radioMIMOspectrum sharingorthogonal projection |
| spellingShingle | Zhao LI Jian-dong LI Li-yuan XIAO Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information Tongxin xuebao cognitive radio MIMO spectrum sharing orthogonal projection |
| title | Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information |
| title_full | Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information |
| title_fullStr | Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information |
| title_full_unstemmed | Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information |
| title_short | Spatio-frequency domain opportunistic access in CR-MIMO system based on primary transmission mode information |
| title_sort | spatio frequency domain opportunistic access in cr mimo system based on primary transmission mode information |
| topic | cognitive radio MIMO spectrum sharing orthogonal projection |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2012)01-0038-07/ |
| work_keys_str_mv | AT zhaoli spatiofrequencydomainopportunisticaccessincrmimosystembasedonprimarytransmissionmodeinformation AT jiandongli spatiofrequencydomainopportunisticaccessincrmimosystembasedonprimarytransmissionmodeinformation AT liyuanxiao spatiofrequencydomainopportunisticaccessincrmimosystembasedonprimarytransmissionmodeinformation |