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DGR: dynamic gradient-based routing protocol for unbalanced and persistent data transmission in wireless sensor and actor networks |
Yi Guo, Zhe-zhuang Xu, Cai-lian Chen*, Xin-ping Guan |
Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China |
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Abstract This paper is concerned with the routing protocol design for large-scale wireless sensor and actor networks (WSANs). The actor-sensor-actor communication (ASAC) strategy is first proposed to guarantee the reliability of persistent actor-actor communication. To keep network connectivity and prolong network lifetime, we propose a dynamic gradient-based routing protocol (DGR) to balance the energy consumption of the network. With the different communication ranges of sensors and actors, the DGR protocol uses a data load expansion strategy to significantly prolong the network lifetime. The balance coefficient and the routing re-establishment threshold are also introduced to make the tradeoff between network lifetime and routing efficiency. Simulation results show the effectiveness of the proposed DGR protocol for unbalanced and persistent data transmission.
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Received: 07 June 2010
Published: 11 April 2011
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DGR: dynamic gradient-based routing protocol for unbalanced and persistent data transmission in wireless sensor and actor networks
This paper is concerned with the routing protocol design for large-scale wireless sensor and actor networks (WSANs). The actor-sensor-actor communication (ASAC) strategy is first proposed to guarantee the reliability of persistent actor-actor communication. To keep network connectivity and prolong network lifetime, we propose a dynamic gradient-based routing protocol (DGR) to balance the energy consumption of the network. With the different communication ranges of sensors and actors, the DGR protocol uses a data load expansion strategy to significantly prolong the network lifetime. The balance coefficient and the routing re-establishment threshold are also introduced to make the tradeoff between network lifetime and routing efficiency. Simulation results show the effectiveness of the proposed DGR protocol for unbalanced and persistent data transmission.
关键词:
Wireless sensor and actor networks,
Unbalanced and persistent data transmission,
Gradient-based routing
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