文章基本信息

标题：An Enhanced Approach for a Prediction Method of the Propagation Characteristics in Korean Environments at 781 MHz
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作者：Jung, Myoung-Won ; Kim, Jong Ho ; Choi, Jae Ick 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2012
卷号：34
期号：6
页码：911-921
DOI：10.4218/etrij.12.1812.0088
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：In high-speed wireless communications, an analysis of the propagation characteristics is an important process. Information on the propagation characteristics suitable for each environment significantly helps in the design of mobile communications. This paper presents the analysis results of radio propagation characteristics in outdoor environments for a new mobile wireless system at 781 MHz. To avoid the interference of Korean DTV broadcasting, we measure the channel characteristics in urban, suburban, and rural areas on Jeju Island, Republic of Korea, using a channel sounder and antenna. The path loss (PL) measurement results differ from those of existing propagation models by more than 10 dB. To analyze the frequency characteristics for Korean propagation environments, we derive various propagation characteristic parameters: PL, delay spread, angular spread, and K-factor. Finally, we verify the validity of the measurement results by comparing them with the actual measurement results and 3D ray-tracing simulation results.
关键词：Propagation characteristic;new mobile system;channel parameter;correlation;ray-tracing