An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor Networks
The network coding technique is promising for improving the performance of video communication in wireless multimedia sensor networks. However, some special characteristics of existing wireless network coding mechanisms degrade the performance of video data delivery. This work begins with a thorough...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi - SAGE Publishing
2012-12-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2012/565604 |
| _version_ | 1797764683950718976 |
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| author | Hang Shen Guangwei Bai Lu Zhao Zhenmin Tang |
| author_facet | Hang Shen Guangwei Bai Lu Zhao Zhenmin Tang |
| author_sort | Hang Shen |
| collection | DOAJ |
| description | The network coding technique is promising for improving the performance of video communication in wireless multimedia sensor networks. However, some special characteristics of existing wireless network coding mechanisms degrade the performance of video data delivery. This work begins with a thorough investigation and understanding of the performance limitations of existing wireless network coding mechanisms. On this basis, we propose an Adaptive Opportunistic Network Coding mechanism (AONC) to improve the transmission quality of video stream in wireless multimedia sensor networks. First, we propose a novel asymmetric coding method to process the video data of different lengths. The aim is to improve data exchange gain. Second, we design an opportunistic forwarding strategy based on dynamic priority to ensure that packets have a better chance to be coded and transmitted, thus achieving much higher throughput. Finally, we present a traffic-aware data scheduling algorithm, working together with the above network coding mechanism, to reduce the loss of potential coding opportunities. Our simulation results demonstrate that, compared with the existing typical network coding mechanisms, AONC can greatly enhance video transmission quality and efficiently utilize bandwidth and energy resources. |
| first_indexed | 2024-03-12T19:59:16Z |
| format | Article |
| id | doaj.art-db80756bc7fc41d1bf24b2efb712c243 |
| institution | Directory Open Access Journal |
| issn | 1550-1477 |
| language | English |
| last_indexed | 2024-03-12T19:59:16Z |
| publishDate | 2012-12-01 |
| publisher | Hindawi - SAGE Publishing |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj.art-db80756bc7fc41d1bf24b2efb712c2432023-08-02T02:33:52ZengHindawi - SAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772012-12-01810.1155/2012/565604An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor NetworksHang Shen0Guangwei Bai1Lu Zhao2Zhenmin Tang3 State Key Laboratory of Novel Software Technology, Nanjing University, Nanjing 210093, China Department of Computer Science and Technology, Nanjing University of Technology, Nanjing 210009, China Key Laboratory of Intelligent Perception and System for High-Dimensional Information of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China Key Laboratory of Intelligent Perception and System for High-Dimensional Information of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, ChinaThe network coding technique is promising for improving the performance of video communication in wireless multimedia sensor networks. However, some special characteristics of existing wireless network coding mechanisms degrade the performance of video data delivery. This work begins with a thorough investigation and understanding of the performance limitations of existing wireless network coding mechanisms. On this basis, we propose an Adaptive Opportunistic Network Coding mechanism (AONC) to improve the transmission quality of video stream in wireless multimedia sensor networks. First, we propose a novel asymmetric coding method to process the video data of different lengths. The aim is to improve data exchange gain. Second, we design an opportunistic forwarding strategy based on dynamic priority to ensure that packets have a better chance to be coded and transmitted, thus achieving much higher throughput. Finally, we present a traffic-aware data scheduling algorithm, working together with the above network coding mechanism, to reduce the loss of potential coding opportunities. Our simulation results demonstrate that, compared with the existing typical network coding mechanisms, AONC can greatly enhance video transmission quality and efficiently utilize bandwidth and energy resources.https://doi.org/10.1155/2012/565604 |
| spellingShingle | Hang Shen Guangwei Bai Lu Zhao Zhenmin Tang An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor Networks International Journal of Distributed Sensor Networks |
| title | An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor Networks |
| title_full | An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor Networks |
| title_fullStr | An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor Networks |
| title_full_unstemmed | An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor Networks |
| title_short | An Adaptive Opportunistic Network Coding Mechanism in Wireless Multimedia Sensor Networks |
| title_sort | adaptive opportunistic network coding mechanism in wireless multimedia sensor networks |
| url | https://doi.org/10.1155/2012/565604 |
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