Analysis of wideband propagation characteristics for the high transmission rate in indoor radio channels

VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151) Pub Date : 1998-05-18 DOI:10.1109/VETEC.1998.686583

Hee-Chang Jung, Jin-Dam Mok, Deock-Ho Ha

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引用次数: 1

Abstract

In this paper, the wideband propagation characteristics were analyzed by the frequency sweeping method. In order to investigate the possibility of a high transmission rate in indoor radio channels, we adopted a circularly polarized antenna in the indoor field tests under line-of-sight (LOS) and non-line-of-sight (NLOS) environments. We analyzed the effects of both human motions and transmission antenna heights. From the indoor field tests, it was found that amplitude deviation within the frequency bandwidth should be improved by circularly polarized waves under LOS conditions, due to removing the reflected wave with an odd number. Also it has been found that there exists an improvement of the amplitude deviation with polarization diversity reception under an NLOS environment. In addition, for the case where the transmission antenna height is changed up to the ceiling height, it has been found that there should be improvement of the wideband amplitude deviation for the high speed transmission system, using polarization diversity.

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高传输速率的室内无线信道宽带传播特性分析

本文采用扫频法对宽带传输特性进行了分析。为了研究在室内无线电信道中实现高传输速率的可能性，我们在视距(LOS)和非视距(NLOS)环境下的室内现场测试中采用了圆极化天线。我们分析了人体运动和传输天线高度的影响。室内现场测试发现，在LOS条件下，圆极化波去除奇数反射波，可以改善频宽范围内的幅值偏差。在近视距环境下，极化分集接收对振幅偏差有改善作用。另外，在将传输天线高度改为顶棚高度的情况下，采用极化分集的方法对高速传输系统的宽带幅值偏差进行了改善。

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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VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151)

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