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• 论文 •    

5.8 GHz室外环境传播特性分析

刘杉坚1,2, 周春晖2,周世东2, 王庭昌1   

  1. 1.解放军理工大学 通信工程学院,南京 210007;2.清华大学 信息科学技术学院国家实验室,北京 100084
  • 收稿日期:2007-07-10 修回日期:1900-01-01 出版日期:2008-11-20 发布日期:2008-11-20
  • 通讯作者: 刘杉坚

Propagation Characteristics Analysis for Outdoor Environment at 58 GHz

LIU Shan-jian 1,2, ZHOU Chun-hui2,ZHOU Shi-dong2, WANG Ting-chang1   

  1. 1.Institute of Communication Engineering,Peoples Liberation Army University of Science and Technology, Nanjing 210007,China;

    2.National Laboratory for Information Science and Technology, Tsinghua University,Beijing 100084,China

  • Received:2007-07-10 Revised:1900-01-01 Online:2008-11-20 Published:2008-11-20
  • Contact: LIU Shan-jian

摘要: 为了给下一代无线通信系统(B3G:Beyond 3G)参数设计提供参考以及为算法仿真提供信道建模,针对国内城市室外环境不同的传播场景,在58 GHz频段和20 MHz信道带宽的测量条件下,进行了室外信道测量和研究。根据测量数据统计分析,58 GHz频段路径损耗指数在视距通信(LOS:Line of Sight)时为253,在非视距通信(NLOS:No Line of Sight)时为33~38;同时,对COST231-WI路径损耗模型进行了修正,考虑到阴影衰落的影响,修正后的模型能较准确地预测接收功率,为系统覆盖范围预测提供参考。均方根时延扩展(Root Mean Square Delay Spread)的累积概率为09时,在05~08 μs之间变化。均方根角度扩展(RMS Azimuth Spread)主要由发射天线位置和传播环境决定。

关键词: 信道测量, 路径损耗, 阴影衰落, 均方根时延扩展, 均方根方位角扩展

Abstract: To provide references for China B3G parameters design and channel model,measurements with 20 MHz bandwidth at 58 GHz frequency have been performed in outdoor environments. By analyzing the measurement data, the empirical channel characteristics such as path loss exponent, shadow fading, rms delay spread and rms azimuth spread have been extracted. In LOS(Line of Sight) environment, the path loss exponent is 253 and it is 33~38 in NOLS(No Line of Sight) environment. By modifying the COST231-WI model the receive power in the measurement area can be accurately predicted. The RMS(Root Mean Square) delay spread is within 05~08 μs.The RMS azimuth spread is decided by the transmitter antenna height and the propagation circumstance.

Key words: shadow fading, root mean square(RMS) delay spread, root mean square(RMS) azimuth spread, channel measurement, path-loss

中图分类号: 

  • TN929.5