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1篇 您的检索式：作者名="Chang Ruoting"

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		题名	作者	年代	出处	被引量
	1	Path loss modelling and comparison based on the radio propagation measurement at 3.5GHz显示文摘Wideband IMT-Advanced mobile communication systems tend to operate in the high frequency bandsdue to a relatively large capacity available .Thus,Measurement and modelling methods of radio propaga-tion characteristics are proposed for the field test of Chinese 4th generation(4G)trial system.The mea-surement system is established for 3 .5GHz based on the sophisticated measurement instruments and thevirtual instrument technology.The characteristic parameters of radio propagation such as path loss(PL)exponent and shadow fading standard deviation are extracted from measurement data,which result in thepath loss model finally.The comparisons with other existing international models results validate our mea-surement in terms of path loss model .Based on the analysis of the existing extension model assumed forthe microwave frequency at 3 .5GHz,we find that the Stanford University Interim(SUI)model fits verywell with the measurement result in the hotspot scenario,while the COST 231 model is closer to the mea-surement result in the suburban scenario.This result provides a measurement-based channel reference forthe development of the future IMT-Advanced systems in China.	王萍 Li Yingzhe Chang Ruoting Sun Kun Xu Hui	2009	High Technology Letters2009，15，3：	4

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