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    題名: Path Loss Reduction for Multiusers by Different Antenna Arrays
    作者: Liao, Shu-Han;Lee, Youn-Tai;Chiu, Chien-Ching;Chung, Chien-Hui
    貢獻者: 淡江大學電機工程學系
    日期: 2014-07
    上傳時間: 2014-09-25 14:30:39 (UTC+8)
    摘要: In this paper, we use the shooting and bouncing ray/image (SBR/Image)[1]-[5] method to compute the path loss for different outdoor environments. Three types of antenna arrays such as L shape, Y shape, and Circular shape arrays are used in the base station and their corresponding path loss on several routes in the outdoor environment are calculated[6]-[8]. Moreover, the genetic algorithm (GA) and Dynamic Differential Evolution (DDE) are employed to optimize the excitation voltages and phases for antenna arrays to form proper antenna patterns[9], [10]. The particle swarm optimization algorithm has better optimization result than genetic algorithm in NLOS case. For antenna arrays Y shape has better optimization result in NLOS case.
    關聯: Pan African International Conference on Science, Computing and Telecommunications (2014)
    顯示於類別:[電機工程學系暨研究所] 會議論文


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