Grid-based hole recovery mechanism in hybrid wireless sensor networks
博士 === 淡江大學 === 資訊工程學系博士班 === 99 === In wireless sensor networks, the nodes are typically empowered with scarce energy resource and limited computing power. The network can not get fully connectivity due to the randomly deploy static sensor nodes which may cause the hole problem. However, the networ...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | en_US |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/20852360578929944570 |
| Summary: | 博士 === 淡江大學 === 資訊工程學系博士班 === 99 === In wireless sensor networks, the nodes are typically empowered with scarce energy resource and limited computing power. The network can not get fully connectivity due to the randomly deploy static sensor nodes which may cause the hole problem. However, the network performance could be improved by the high coverage ratio because of saving the energy for transmitting. Hence, the hole problem is one of the important issues in wireless sensor networks.
We proposed a hole recovering mechanism based on grid architecture with mobile sensor nodes. The virtual force theory is used for determining which mobile sensor node should recover the hole. The proposed mechanism could efficiently maintain high coverage ratio and prolong the entire network lifetime. The simulation results demonstrate that our mechanism indeed recover routing holes and prolong the network lifetime.
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