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Cross-layer Enhancement to Multi-hop Routing in Sensor Networks: an Empirical Study
引用本文:SHANG Zhi-Jun WANG Jun YU Hai-Bin. Cross-layer Enhancement to Multi-hop Routing in Sensor Networks: an Empirical Study[J]. 自动化学报, 2006, 32(6): 875-880
作者姓名:SHANG Zhi-Jun WANG Jun YU Hai-Bin
作者单位:[1]Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016 [2]Graduate School of the Chinese Academy of Sciences, Beijing 100039
基金项目:Supported by National Natural Science Foundation of P. R. China (60374072, 60434030)Acknowledgements The authors would like to thank the reviewers for their helpful comments.
摘    要:Lossy link is one of the unique characteristics in random-deployed sensor networks. We envision that robustness and reliability of routing cannot be ensured purely in network layer. Our idea is to enhance the performance of routing protocol by cross-layer interaction. We modified mint protocol, a routing protocol in TinyOS and proposed an enhanced version of mint called PA-mint. A transmission power control interface is added to network layer in PA-mint. When routing performance of the current network is not satisfied, PA-mint monotonically increases the transmission power via the interface we added. PA-mint is able to connect orphan nodes and robust to node mobility or key nodes failure. In the case that automatic request retransmission is employed, the number of retransmissions can be reduced by PA-mint. Results from experiments show that PA-mint increases the reliability and robustness of routing protocol by cross-layer interaction.

收稿时间:2005-10-29
修稿时间:2006-03-31

Cross-layer Enhancement to Multi-hop Routing in Sensor Networks: an Empirical Study
SHANG Zhi-Jun WANG Jun YU Hai-Bin. Cross-layer Enhancement to Multi-hop Routing in Sensor Networks: an Empirical Study[J]. Acta Automatica Sinica, 2006, 32(6): 875-880
Authors:SHANG Zhi-Jun WANG Jun YU Hai-Bin
Abstract:Lossy link is one of the unique characteristics in random-deployed sensor networks. We envision that robustness and reliability of routing cannot be ensured purely in network layer. Our idea is to enhance the performance of routing protocol by cross-layer interaction. We modified mint protocol, a routing protocol in TinyOS and proposed an enhanced version of mint called PA-mint. A transmission power control interface is added to network layer in PA-mint. When routing performance of the current network is not satisfied, PA-mint monotonically increases the transmission power via the interface we added. PA-mint is able to connect orphan nodes and robust to node mobility or key nodes failure. In the case that automatic request retransmission is employed, the number of retransmissions can be reduced by PA-mint. Results from experiments show that PA-mint increases the reliability and robustness of routing protocol by cross-layer interaction.
Keywords:Sensor networks   routing   cross-layer design
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