Millimeter-wave broad-band fiber-wireless system incorporating baseband data transmission over fiber and remote LO delivery
Millimeter-wave broad-band fiber-wireless system incorporating baseband data transmission over fiber and remote LO delivery
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DOI：
10.1109/50.887186
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发表时间：
2000-10
影响因子：
4.7
通讯作者：
Christina Lim;A. Nirmalathas;D. Novak;Rodney Waterhouse;Gideon Yoffe
中科院分区：
文献类型：
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作者：
Christina Lim;A. Nirmalathas;D. Novak;Rodney Waterhouse;Gideon Yoffe
我们提出了毫米波（mm波）宽带光纤无线系统，其中包括基带数据传输在两个下游（622 Mb/s）和上游（155 Mb/s）方向的第一个演示。在远程天线基站处用于向上转换到毫米波射频（RF）和从毫米波射频（RF）向下转换所需的本地振荡器（LO）经由调制方案远程地递送，所述调制方案容忍光纤色散对检测到的LO载波功率的影响。该技术采用位于中心局（CO）的单个双电极调制器，数据和频率等于LO频率一半的RF信号同时施加到器件。调制方案作为调制器操作条件的函数被优化。毫米波光纤无线网络中的同时双向无线电传输是使用专门设计的毫米波双工器位于基站（BS）和客户单元，和一个单一的Ka波段印刷天线阵列在BS同时运行在发送和接收模式。在20 km单模光纤后，下行链路（34.8 GHz）和上行链路（37.5 GHz）均实现了无差错数据传输，在包含2 m无线电链路后，误码率（BER）达到10/sup-6/。
We present the first demonstration of a millimeter-wave (mm-wave) broadband fiber-wireless system which incorporates baseband data transmission in both the downstream (622 Mb/s) and upstream (155 Mb/s) directions. The local oscillator (LO) required at the remote antenna base station for up- and downconversion to/from the mm-wave radio frequency (RF) is delivered remotely via a modulation scheme that is tolerant to the effects of fiber chromatic dispersion on the detected LO carrier power. The technique employs a single dual electrode modulator located at the central office (CO) and the data and an RF signal at a frequency equal to half the LO frequency, are applied simultaneously to the device. The modulation scheme was optimized as a function of the modulator operating conditions. Simultaneous bidirectional radio transmission in the mm-wave fiber-wireless network was implemented using specially designed mm-wave diplexers located at the base station (BS) and customer unit, and a single Ka-band printed antenna array at the BS operating simultaneously in transmit and receive mode. Error-free data transmission was demonstrated for both down(34.8 GHz) and uplinks (37.5 GHz) after 20 km of single-mode optical fiber and a bit error rate (BER) of 10/sup -6/ was achieved after the inclusion of a 2-m radio link.