Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation
We focus on the interference statistical metrics of matched filter transmission over line-of-sight (LoS) downlink channels. The exact moments of the interference are derived, which can be used to make approximations for user rates and gain insights into the effects of system parameters such as angle...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2018/7218471 |
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| author | Yawei Yu Jianhua Zhang Lei Tian |
| author_facet | Yawei Yu Jianhua Zhang Lei Tian |
| author_sort | Yawei Yu |
| collection | DOAJ |
| description | We focus on the interference statistical metrics of matched filter transmission over line-of-sight (LoS) downlink channels. The exact moments of the interference are derived, which can be used to make approximations for user rates and gain insights into the effects of system parameters such as angle spread (AS), antenna numbers, and array spacings. As the interference decreases with larger AS, we propose a user scheduling scheme by grouping users into different subspaces with corresponding orthogonal fraction of resource blocks, aiming to maximize the 3D angular separation among multiusers within each group; thus, a lower interference and higher sum rate would be expected. By performing this user scheduling scheme with 3D angular separation, a large sum rate gain is observed, which provides us a promising method in interference control and management. |
| format | Article |
| id | doaj-art-49df4b9e43e64196b7633888f509653e |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-49df4b9e43e64196b7633888f509653e2025-02-03T06:13:02ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772018-01-01201810.1155/2018/72184717218471Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular SeparationYawei Yu0Jianhua Zhang1Lei Tian2Beijing University of Posts and Telecommunications, Beijing 100876, ChinaBeijing University of Posts and Telecommunications, Beijing 100876, ChinaBeijing University of Posts and Telecommunications, Beijing 100876, ChinaWe focus on the interference statistical metrics of matched filter transmission over line-of-sight (LoS) downlink channels. The exact moments of the interference are derived, which can be used to make approximations for user rates and gain insights into the effects of system parameters such as angle spread (AS), antenna numbers, and array spacings. As the interference decreases with larger AS, we propose a user scheduling scheme by grouping users into different subspaces with corresponding orthogonal fraction of resource blocks, aiming to maximize the 3D angular separation among multiusers within each group; thus, a lower interference and higher sum rate would be expected. By performing this user scheduling scheme with 3D angular separation, a large sum rate gain is observed, which provides us a promising method in interference control and management.http://dx.doi.org/10.1155/2018/7218471 |
| spellingShingle | Yawei Yu Jianhua Zhang Lei Tian Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation International Journal of Antennas and Propagation |
| title | Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation |
| title_full | Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation |
| title_fullStr | Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation |
| title_full_unstemmed | Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation |
| title_short | Line-Of-Sight Interference Statistics and User Scheduling with 3D Angular Separation |
| title_sort | line of sight interference statistics and user scheduling with 3d angular separation |
| url | http://dx.doi.org/10.1155/2018/7218471 |
| work_keys_str_mv | AT yaweiyu lineofsightinterferencestatisticsanduserschedulingwith3dangularseparation AT jianhuazhang lineofsightinterferencestatisticsanduserschedulingwith3dangularseparation AT leitian lineofsightinterferencestatisticsanduserschedulingwith3dangularseparation |