The trend of technological development of telecommunication networks is to provide both wired access and wireless access.
有线无线一体化技术是通讯网的发展趋势。
Under this background, the research of radio over fiber which combines both advantages of wireless access and wired access is attracting attentions both from academia and industry all over the world.
通过在光纤中传输射频信号，研究既能利用光纤巨大带宽，又能发挥无线通信灵活方便等优势的光载无线技术得到了世界范围内的广泛关注。
The paper begins with explaining the national telecommunication network is composed of backbone network and access network, and there are wired access network and wireless access network.
本文先说明国家通信网有骨干网和接入网，而接入网有有线接入网和无线接入网。
The paper begins with explaining the national telecommunication network is composed of backbone network and access network, and there are wired access network and wireless access network.
本文先说明国家通信网有骨干网和接入网，而接入网有有线接入网和无线接入网。
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