An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor Networks
When a body sensor network (BSN) that is linked to the backbone via a wireless network interface moves from one coverage zone to another, a handover is required to maintain network connectivity. This paper presents an optimized handover scheme with movement trend awareness for BSNs. The proposed sch...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2013-06-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/13/6/7308 |
| _version_ | 1811184720647553024 |
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| author | Lianying Ji Wai-Choong Wong Zhiqiang Zhang Wen Sun |
| author_facet | Lianying Ji Wai-Choong Wong Zhiqiang Zhang Wen Sun |
| author_sort | Lianying Ji |
| collection | DOAJ |
| description | When a body sensor network (BSN) that is linked to the backbone via a wireless network interface moves from one coverage zone to another, a handover is required to maintain network connectivity. This paper presents an optimized handover scheme with movement trend awareness for BSNs. The proposed scheme predicts the future position of a BSN user using the movement trend extracted from the historical position, and adjusts the handover decision accordingly. Handover initiation time is optimized when the unnecessary handover rate is estimated to meet the requirement and the outage probability is minimized. The proposed handover scheme is simulated in a BSN deployment area in a hospital environment in UK. Simulation results show that the proposed scheme reduces the outage probability by 22% as compared with the existing hysteresis-based handover scheme under the constraint of acceptable handover rate. |
| first_indexed | 2024-04-11T13:18:14Z |
| format | Article |
| id | doaj.art-90f4ba0fbd1d4332b3b961ac215f2e66 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:18:14Z |
| publishDate | 2013-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-90f4ba0fbd1d4332b3b961ac215f2e662022-12-22T04:22:20ZengMDPI AGSensors1424-82202013-06-011367308732210.3390/s130607308An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor NetworksLianying JiWai-Choong WongZhiqiang ZhangWen SunWhen a body sensor network (BSN) that is linked to the backbone via a wireless network interface moves from one coverage zone to another, a handover is required to maintain network connectivity. This paper presents an optimized handover scheme with movement trend awareness for BSNs. The proposed scheme predicts the future position of a BSN user using the movement trend extracted from the historical position, and adjusts the handover decision accordingly. Handover initiation time is optimized when the unnecessary handover rate is estimated to meet the requirement and the outage probability is minimized. The proposed handover scheme is simulated in a BSN deployment area in a hospital environment in UK. Simulation results show that the proposed scheme reduces the outage probability by 22% as compared with the existing hysteresis-based handover scheme under the constraint of acceptable handover rate.http://www.mdpi.com/1424-8220/13/6/7308localizationhandoverbody sensor network |
| spellingShingle | Lianying Ji Wai-Choong Wong Zhiqiang Zhang Wen Sun An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor Networks Sensors localization handover body sensor network |
| title | An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor Networks |
| title_full | An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor Networks |
| title_fullStr | An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor Networks |
| title_full_unstemmed | An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor Networks |
| title_short | An Optimized Handover Scheme with Movement Trend Awareness for Body Sensor Networks |
| title_sort | optimized handover scheme with movement trend awareness for body sensor networks |
| topic | localization handover body sensor network |
| url | http://www.mdpi.com/1424-8220/13/6/7308 |
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