Location-assistant content distribution scheme for emergency rescue
In order to optimize the timeliness and pertinence of message delivery in emergency rescue scenarios and improve the service performance of emergency communications network, we propose a location-assistant content distribution scheme based on delay tolerant network. First of all, considering that th...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-09-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147718800464 |
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| _version_ | 1832555318144401408 |
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| author | Guomin Zhang Lihua Song Haitao Wang Chao Hu Na Wang |
| author_facet | Guomin Zhang Lihua Song Haitao Wang Chao Hu Na Wang |
| author_sort | Guomin Zhang |
| collection | DOAJ |
| description | In order to optimize the timeliness and pertinence of message delivery in emergency rescue scenarios and improve the service performance of emergency communications network, we propose a location-assistant content distribution scheme based on delay tolerant network. First of all, considering that the movement patterns of rescue teams tend to follow a predetermined course of action, we design a location-based group mobility model. Due to the intermittent network connectivity and variety of emergency service, a content-classification-based publish/subscribe architecture and a GenericSpray routing algorithm based on the prediction of overlap opportunity in spatio-temporal positions are proposed. Furthermore, we also give a cache management strategy based on the content significance. Since location-assistant content distribution scheme can predict the overlap of activity between rescue teams through the course of action, not only can the number of copy forwarding and message delivery delays be significantly reduced but also the priority delivery of important messages can be ensured by message classification. Simulation experiments show that compared with the traditional delay tolerant network routing algorithm and the classic first-in-first-out caching strategy, location-assistant content distribution scheme improves the performance of message delivery rate, transmission delay, and control overhead significantly. |
| format | Article |
| id | doaj-art-b4910c1177934d678dbe880125e96be4 |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2018-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-b4910c1177934d678dbe880125e96be42025-02-03T05:48:33ZengWileyInternational Journal of Distributed Sensor Networks1550-14772018-09-011410.1177/1550147718800464Location-assistant content distribution scheme for emergency rescueGuomin Zhang0Lihua Song1Haitao Wang2Chao Hu3Na Wang4College of Command Control Engineering, Army Engineering University of PLA, Nanjing, ChinaCollege of Command Control Engineering, Army Engineering University of PLA, Nanjing, ChinaTeaching and Research Support Center, Army Engineering University of PLA, Nanjing, ChinaCollege of Command Control Engineering, Army Engineering University of PLA, Nanjing, ChinaCollege of Communication Engineering, Army Engineering University of PLA, Nanjing, ChinaIn order to optimize the timeliness and pertinence of message delivery in emergency rescue scenarios and improve the service performance of emergency communications network, we propose a location-assistant content distribution scheme based on delay tolerant network. First of all, considering that the movement patterns of rescue teams tend to follow a predetermined course of action, we design a location-based group mobility model. Due to the intermittent network connectivity and variety of emergency service, a content-classification-based publish/subscribe architecture and a GenericSpray routing algorithm based on the prediction of overlap opportunity in spatio-temporal positions are proposed. Furthermore, we also give a cache management strategy based on the content significance. Since location-assistant content distribution scheme can predict the overlap of activity between rescue teams through the course of action, not only can the number of copy forwarding and message delivery delays be significantly reduced but also the priority delivery of important messages can be ensured by message classification. Simulation experiments show that compared with the traditional delay tolerant network routing algorithm and the classic first-in-first-out caching strategy, location-assistant content distribution scheme improves the performance of message delivery rate, transmission delay, and control overhead significantly.https://doi.org/10.1177/1550147718800464 |
| spellingShingle | Guomin Zhang Lihua Song Haitao Wang Chao Hu Na Wang Location-assistant content distribution scheme for emergency rescue International Journal of Distributed Sensor Networks |
| title | Location-assistant content distribution scheme for emergency rescue |
| title_full | Location-assistant content distribution scheme for emergency rescue |
| title_fullStr | Location-assistant content distribution scheme for emergency rescue |
| title_full_unstemmed | Location-assistant content distribution scheme for emergency rescue |
| title_short | Location-assistant content distribution scheme for emergency rescue |
| title_sort | location assistant content distribution scheme for emergency rescue |
| url | https://doi.org/10.1177/1550147718800464 |
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