Ultra-wideband Outdoor Communication Characteristics with and without Traffic
學年 100
學期 2
出版（發表）日期 2012-03-07
作品名稱 Ultra-wideband Outdoor Communication Characteristics with and without Traffic
作品名稱（其他語言）
著者 Chiu, Chien-Ching; Chen, Chien-Hung; Liao, Shu-Han; Tu, Ting-Chieh
單位 淡江大學電機工程學系
出版者 Heidelberg: SpringerOpen
著錄名稱、卷期、頁數 EURASIP Journal on Wireless Communications and Networking 2012(92), (14pages)
摘要 The BER performance for ultra-wideband (UWB) outdoor communication in LOS and NLOS environments with and without traffic is investigated. We obtain the impulse responses of the UWB outdoor environment by both 2.5D SBR-Image method and inverse Fourier transform techniques. The 2.5D SBR-Image method is first considered for two-dimensional environment simulated without heights of obstacles by ray tubes. Then, heights of the obstacles are taken into consideration between the transmitters and receivers. If the height of ray is lower than that of obstacles, the ray is neglected for the receivers. This effectively reduces the simulating time. By using the impulse response of multipath channels, the BER performance for binary pulse amplitude modulation communications over the radio UWB system is evaluated. We have performed computer simulations in LOS and NLOS environments with and without traffic in dense building areas. Numerical results have shown that the multipath effect caused by moving vehicles in the outdoor LOS and NLOS environments has a great impact on BER performance. Rake receivers are used to improve the outage probability. The relationship between traffic and BER performance is investigated; meanwhile, the characteristics of LOS and NLOS outdoor UWB environments are analyzed. Our investigation results can help improve planning and design of the UWB system.
關鍵字 UWB;multipath;BER;outage probability;RMS delay spread
語言 en
ISSN 1687-1499
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 丘建青 chiu@ee.tku.edu.tw
審稿制度 是
國別 DEU
公開徵稿
出版型式 ,電子版,紙本
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