Ultrabroadband Wireless–Optical Transmission Links Using Axial Slot Leaky Feeders and Optical Fiber for Underground Transport Topologies
Ultrabroadband Wireless–Optical Transmission Links Using Axial Slot Leaky Feeders and Optical Fiber for Underground Transport Topologies
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DOI：
10.1109/tvt.2008.920055
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发表时间：
2008-03
影响因子：
6.8
通讯作者：
S. Dudley;T. Quinlan;S. Walker
中科院分区：
文献类型：
--
作者：
S. Dudley;T. Quinlan;S. Walker
本文介绍了一种用于地下交通网络的混合漏馈/光纤传输系统。该系统具有1.6 Gb/s的吞吐量，并具有超宽带轴向缝隙泄漏馈线，这是基于标准的半刚性同轴电缆作为固定天线。贴片天线的中心频率为4 GHz，带宽为1 GHz，-10 dB的铁路车辆。这一最高报告数据速率是通过合并两个800 Mb/s同相和正交（I和Q）相移键控（PSK）调制数据流实现的。一个专门设计的载波和数据同步系统提供了一个方便的接口，1.3/1.5妈妈双工单模光纤远程网络。测得的2.4至6 GHz泄漏馈线带宽允许多无线电多频段无线网状网络，从而实现低竞争的千兆机车车辆数据通信。
This paper describes a hybrid leaky feeder/fiber-optic transmission system for use in underground transportation networks. The system has a 1.6-Gb/s throughput and features an ultrawideband axial slot leaky feeder, which is based on a standard semirigid coaxial cable as a fixed antenna. Patch antennas with a 4-GHz center frequency and a 1-GHz, -10-dB bandwidth are proposed for the rolling stock. This highest reported data rate was achieved by combining two 800-Mb/s in-phase and quadrature (I and Q) phase-shift keying (PSK) modulated data streams. A specially designed carrier and data synchronization system provided a convenient interface to a 1.3/1.5-mum diplex single-mode fiber-remoting network. The measured 2.4- to 6-GHz leaky feeder bandwidth allows multiradio multiband wireless mesh networking and, therefore, low-contention gigabit rolling stock data communications.