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隧道环境单根泄漏电缆MIMO系统的性能测量
Measurements of MIMO system using single-leaky coaxial cable in tunnel environment
【摘要】 通常多输入多输出(multiple-input multiple-output, MIMO)系统需要两根以上泄漏电缆来传输不同信息流.研究隧道环境下单根泄漏电缆双向馈入构成2×2 MIMO系统的性能.测量结果发现,单根泄漏电缆MIMO系统的容量与双根泄漏电缆构成的MIMO系统接近,明显优于单输入单输出(single-input single-output, SISO)系统.研究结果可为轨道交通系统LTE-M通信专网设计提供参考.
【Abstract】 Usually, a multiple-input multiple-output(MIMO) system needs to deploy more than two leaky coaxial cables(LCXs). A 2 × 2 MIMO system using a single LCX as transmitters was measured. Signals are fed from both ends of the LCX port separately,which can be used as two antennas. The results show that the performance of a single LCX system is close to that with two LCXs, and is much better than a single-input single-output system. The conclusion provides a reference for the design of LTE-M private communication networks.
【Key words】 leaky coaxial cable(LCX); long term evolation-metro(LTE-M); multiple input multiple output(MIMO); channel capacity; telecommunication system;
- 【文献出处】 上海大学学报(自然科学版) ,Journal of Shanghai University(Natural Science Edition) , 编辑部邮箱 ,2019年02期
- 【分类号】TN919.3;U231.7;U453.7
- 【被引频次】1
- 【下载频次】57