教師資料查詢 | 類別: 期刊論文 | 教師: 丘建青 Chiu Chien-ching (瀏覽個人網頁)

標題:Bit Error Rate Reduction for Multiusers by Smart Uwb Antenna Array
學年99
學期1
出版(發表)日期2010/10/01
作品名稱Bit Error Rate Reduction for Multiusers by Smart Uwb Antenna Array
作品名稱(其他語言)
著者Liao, S.-H.; Ho, M.-H.; Chiu, C.-C.
單位淡江大學電機工程學系
出版者Cambridge: Electromagnetics Academy
著錄名稱、卷期、頁數Progress In Electromagnetics Research C 16, pp.85-98
摘要In this paper, a new ultra wideband circular antenna array (UCAA) combining genetic algorithm (GA) to minimize the bit error rate (BER) is proposed. The ultra wideband (UWB) impulse responses of the indoor channel for any transmitter-receiver location are computed by SBR/Image techniques, inverse fast Fourier transform and Hermitian processing. By using the impulse response of multipath channel, the BER performance of the binary pulse amplitude modulation (B-PAM) impulse radio (IR) UWB system with circular antenna array can be calculated. Based on the topography of the antenna and the BER formula, the array pattern synthesis problem can be reformulated into an optimization problem and solved by the genetic algorithm. The novelties of our approach is not only choosing BER as the object function instead of sidelobe level of the antenna pattern, but also considering the antenna feed length effect of each array element. The strong point of the genetic algorithm is that it can find out the solution even if the performance index cannot be formulated by simple equations. Simulation results show that the synthesized antenna array pattern is effective to focus maximum gain to the multiusers.
關鍵字
語言英文
ISSN1937-8718
期刊性質國外
收錄於EI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式電子版
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