Because power line communication has several advantages, such as no need of new wire and low cost, it has drawn a lot of attentions in the fields of intelligent home LAN and broadband access.

由于电力线通信不需重新布线，成本低廉等优点，在智能家庭网络和宽带接入等领域受到了极大的关注。

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Because power line communication has several advantages, such as no need of new wire and low cost, it has drawn a lot of attentions in the fields of broadband access.

由于电力线通信不需重新布线，成本低廉等优点，它作为宽带接入的一种方式受到了极大的关注。

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Compared to wire line networks, wireless networks have higher mobility, while they face the difficulty of bad wireless communication environment and limited spectrum resource.

相对有线网络，无线网络最大的优点是可移动性，但是却要面对恶劣无线通信环境和有限频谱资源的挑战。

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