Level 1 corresponds to the OSI Layer 1 ( Physical Layer )

第1级对应于OSI第1层 ( 物理层 )

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IEEE proposes ultra - wideband as the realizing scheme of physical layer in wireless personal area network.

IEEE已经将 超宽带 技术作为高速无线个域网物理层的实现方案.

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We should reduce the nodes energy consumption from the network layer and the physical layer.

我们应该从网络层和物理层来减少节点能量消耗.

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