Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed Railways
With the booming development of high-speed railways (HSRs), key technologies of wireless communications need to be constantly innovated. In particular, the frontier issue of low delay of the handover for the fifth generation (5G) in fast-moving scenarios has attracted attention from both industry an...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/9/3100 |
| _version_ | 1797535773545725952 |
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| author | Baofeng Duan Cuiran Li Jianli Xie Wei Wu Dongmei Zhou |
| author_facet | Baofeng Duan Cuiran Li Jianli Xie Wei Wu Dongmei Zhou |
| author_sort | Baofeng Duan |
| collection | DOAJ |
| description | With the booming development of high-speed railways (HSRs), key technologies of wireless communications need to be constantly innovated. In particular, the frontier issue of low delay of the handover for the fifth generation (5G) in fast-moving scenarios has attracted attention from both industry and academia. Based on an analysis of a large number of measured data and the location of the user equipment (UE), a fast handover algorithm is proposed to solve the problem of long delay for a train moving at high speed in a 5G-railway (5G-R). By calculating the speed of a train and its direction of movement, a reasonable handover mode is selected and the handover chain of neighboring cells is identified. The location of the train can be calculated to determine whether UE enters the defined identification zone of pre-handover. Depending on the values collected in the measurement report, the command of the handover is triggered when the weight of the target cell is greater than that of the source cell. Our experimental results show that the delay of the fast handover algorithm is reduced by 2.03%, and the success rate of the handover is increased by 0.42%. Research directions for smart railways are discussed based on these findings. |
| first_indexed | 2024-03-10T11:50:05Z |
| format | Article |
| id | doaj.art-5618467d96b843e6815e5b1d0fb5e80c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T11:50:05Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-5618467d96b843e6815e5b1d0fb5e80c2023-11-21T17:44:57ZengMDPI AGSensors1424-82202021-04-01219310010.3390/s21093100Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed RailwaysBaofeng Duan0Cuiran Li1Jianli Xie2Wei Wu3Dongmei Zhou4School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaWith the booming development of high-speed railways (HSRs), key technologies of wireless communications need to be constantly innovated. In particular, the frontier issue of low delay of the handover for the fifth generation (5G) in fast-moving scenarios has attracted attention from both industry and academia. Based on an analysis of a large number of measured data and the location of the user equipment (UE), a fast handover algorithm is proposed to solve the problem of long delay for a train moving at high speed in a 5G-railway (5G-R). By calculating the speed of a train and its direction of movement, a reasonable handover mode is selected and the handover chain of neighboring cells is identified. The location of the train can be calculated to determine whether UE enters the defined identification zone of pre-handover. Depending on the values collected in the measurement report, the command of the handover is triggered when the weight of the target cell is greater than that of the source cell. Our experimental results show that the delay of the fast handover algorithm is reduced by 2.03%, and the success rate of the handover is increased by 0.42%. Research directions for smart railways are discussed based on these findings.https://www.mdpi.com/1424-8220/21/9/3100rail transit communicationsmart railwayshandover chaindelay of the handoversuccess rate of the handover |
| spellingShingle | Baofeng Duan Cuiran Li Jianli Xie Wei Wu Dongmei Zhou Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed Railways Sensors rail transit communication smart railways handover chain delay of the handover success rate of the handover |
| title | Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed Railways |
| title_full | Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed Railways |
| title_fullStr | Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed Railways |
| title_full_unstemmed | Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed Railways |
| title_short | Fast Handover Algorithm Based on Location and Weight in 5G-R Wireless Communications for High-Speed Railways |
| title_sort | fast handover algorithm based on location and weight in 5g r wireless communications for high speed railways |
| topic | rail transit communication smart railways handover chain delay of the handover success rate of the handover |
| url | https://www.mdpi.com/1424-8220/21/9/3100 |
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