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Energy-efficient forwarding in wireless sensor networks
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DOI：10.1016/j.pmcj.2007.09.002.png)
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摘要
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For maximizing the energy efficiency in a wireless network, we propose two forwarding schemes termed single-link and multi-link energy-efficient forwarding that tradeoff delivery ratios against energy costs. Multi-link forwarding improves the network performance substantially by addressing multiple receivers at once during the packet forwarding process. If the first forwarding node does not receive a packet correctly, other nodes may act as backup nodes and perform the forwarding instead. By means of mathematical analyses, we derive how the energy efficiency of a forwarding path can be computed and how a forwarding tree is established. Routing cycles are explicitly taken into account and prevented by means of sequence numbers. Simulations and real-world experiments provide a comparison to other reference strategies, showing a superior performance of our forwarding scheme in terms of energy efficiency. (C) 2007 Elsevier B.V. All rights reserved.
Keyword:
Energy efficiency
Multi-link forwarding
Opportunistic routing
Wireless sensor networks
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3.5
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被引数:
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