講演抄録/キーワード |
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Three-Ray Pathloss Model for Ultra Wideband Impulse Radio Systems ○Pichaya Supanakoon・Sathaporn Promwong(KMITL)・Jun-ichi Takada(Tokyo Tech) エレソ技報アーカイブはこちら |
抄録 |
(和) |
Pathloss is important parameter to analyze and design link budget. For indoor environment, there is fading that occurs in pathloss. Therefore, accurate pathloss model, which is considered fading, is necessary. In this paper, three-ray path loss model is proposed for untra wideband impulse radio (UWB-IR) systems. The rectangular passband was used as UWB-IR transmitted signal. The extension of Friis transmission formula was applied for UWB-IR three-ray channel. The received signal is evaluated. The closed form formula of three-ray pathloss model was derived based on average power loss. The path loss from proposed model was illustrated and compared with ground reflection model (two-ray model) and free space model. This model can be used to study the characteristic of fading and extended to multi-ray pathloss model for indoor environment. |
(英) |
Pathloss is important parameter to analyze and design link budget. For indoor environment, there is fading that occurs in pathloss. Therefore, accurate pathloss model, which is considered fading, is necessary. In this paper, three-ray path loss model is proposed for untra wideband impulse radio (UWB-IR) systems. The rectangular passband was used as UWB-IR transmitted signal. The extension of Friis transmission formula was applied for UWB-IR three-ray channel. The received signal is evaluated. The closed form formula of three-ray pathloss model was derived based on average power loss. The path loss from proposed model was illustrated and compared with ground reflection model (two-ray model) and free space model. This model can be used to study the characteristic of fading and extended to multi-ray pathloss model for indoor environment. |
キーワード |
(和) |
three-ray model / pathloss / ultra wideband impulse radio (UWB-IR) / / / / / |
(英) |
three-ray model / pathloss / ultra wideband impulse radio (UWB-IR) / / / / / |
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