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Path loss modelling and comparison based on the radio propagation measurement at 3.5GHz 被引量:4

Path loss modelling and comparison based on the radio propagation measurement at 3.5GHz
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摘要 Wideband IMT-Advanced mobile communication systems tend to operate in the high frequency bands due to a relatively large capacity available. Thus, Measurement and modelling methods of radio propaga- tion eharaeteristics 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 sophistieated measurement instruments and the virtual instrument teehnology. The characteristic parameters of radio propagation sueh as path loss (PL) exponent and shadow fading standard deviation are extracted from measurement data, which result in the path 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 for the microwave frequency at 3.5GHz, we find that the Stanford University Interim (SUI) model fits very well 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 referenee for the development of the future IMT-Advanced systems in China. 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.
出处 《High Technology Letters》 EI CAS 2009年第3期272-276,共5页 高技术通讯(英文版)
基金 supported by the High Technology Research and Development Programme of China(2007AA01Z278)
关键词 IMT-advaneed channel measurement channel model path loss radio propagation Stanford University Interim (SUI) COST 231 Hata WINNER 路径损耗模型 无线电传播 测量仪器 基础 移动通信系统 生态系统评估 虚拟仪器技术 斯坦福大学
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参考文献9

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