標題: Analysis of the optimum configuration of roadside units and onboard units in dedicated short-range communication systems
作者: Shieh, Wern-Yarng
Lee, Wei-Hsun
Tung, Shen-Lung
Jeng, Bor-Shenn
Liu, Cheng-Hsin
資訊工程學系
Department of Computer Science
關鍵字: dedicated short-range communication (DSRC);electronic toll collection (ETC);infrared communication;intelligent transportation system (ITS)
公開日期: 1-Dec-2006
摘要: With the aid of a simple relation, which is analogous to the radar equation, the uplink signal strength received by the receiving module of a roadside unit (RSU) and emitted from the radiation module of an onboard unit (OBU) can be described. Setting the scale of this relation arbitrarily and determining the signal strength threshold from experimental measurements, and combined with the simulation of the radiation and the receiving pattern by cosine(n) function, the relative signal strength emitted from the OBU and received by the RSU can be calculated successfully. From this computed relative signal strength and the threshold, the influence of the RSU and OBU mounting parameters, such as the mounting angles and mounting height, on the available communication region is analyzed. The effect of windshield fading is also considered. With the help of the analysis results, an optimum RSU and OBU mounting configuration can be easily obtained. This method can be used conveniently and successfully for very short wavelengths. This includes visible light, infrared, and even submillimeter-wave ranges. For millimeter-wave and microwave systems, this method can, in some cases, also provide a rudimentary estimation.
URI: http://dx.doi.org/10.1109/TITS.2006.884888
http://hdl.handle.net/11536/11453
ISSN: 1524-9050
DOI: 10.1109/TITS.2006.884888
期刊: IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
Volume: 7
Issue: 4
起始頁: 565
結束頁: 571
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