Quality-based channel selection in multi-channel radio-over-fiber system

Signal and Information Processing Association Annual Summit and Conference (APSIPA), 2014 Asia-Pacific Pub Date : 2014-12-01 DOI:10.1109/APSIPA.2014.7041690

Withawat Tangtrongpairoj, T. Higashino, M. Okada

引用次数: 0

Abstract

Radio over Fiber (RoF) is a promising solution for wireless access services by transferring the heterogeneous radio signal via the optical fiber link. However, RoF devices have nonlinear characteristics which create intermodulation products in system. The intermodulation distortion (IMD) interferes uplink RF signals in the presence of coupling between downlink and uplink antennas in the base station (BS). This paper proposed the performance evaluation due to coupled downlink interfere to uplink antenna. The carrier to distortion plus noise ratio (CDNR) is evaluated for all combinations. By using NS3 network simulator, the result shows the best combination achieves better performance. Which coupled downlink interfere in uplink signal can be reduced when amount of downlink packet is decreased.

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多通道光纤无线通信系统中基于质量的信道选择

光纤无线电(RoF)通过光纤链路传输异构无线电信号，是一种很有前途的无线接入服务解决方案。然而，RoF器件具有非线性特性，会在系统中产生互调产物。在基站下行天线和上行天线之间存在耦合的情况下，互调失真(IMD)会干扰上行射频信号。本文提出了由于下行链路耦合干扰对上行天线的性能评估。对所有组合的载波失真加噪声比(CDNR)进行了评估。通过对NS3网络进行仿真，结果表明，最佳组合可以获得更好的性能。减少下行分组的数量可以减少上行信号中的耦合下行干扰。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Signal and Information Processing Association Annual Summit and Conference (APSIPA), 2014 Asia-Pacific

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