Multirate adaptive filtering for DS/CDMA code acquisition

Hua Lung Yang, Wen-Rong Wu

研究成果: Conference contribution同行評審

5 引文 斯高帕斯(Scopus)

摘要

Code acquisition in DS/CDMA systems is usually conducted using a correlator. However, in a multiuser access interference (MAl) environment, its performance is seriously degraded. The adaptive filtering scheme has been proposed to overcome this problem. Although this approach is effective, it requires high computational complexity. This paper proposes a multirate adaptive filtering scheme to alleviate this problem. The proposed scheme uses two adaptive filters operated in different rates. Due to downsampling operations, the computational complexity of the adaptive filters can be effectively reduced. We also theoretically analyze the mean acquisition time and the acquisition error probability. Simulations show that while the proposed scheme can have better performance, its computational complexity is only half of the conventional adaptive filtering method.

原文American English
主出版物標題Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2003
發行者Institute of Electrical and Electronics Engineers Inc.
頁面363-366
頁數4
ISBN(電子)0780382927, 9780780382923
DOIs
出版狀態Published - 1 1月 2003
事件3rd IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2003 - Darmstadt, Germany
持續時間: 14 12月 200317 12月 2003

出版系列

名字Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2003

Conference

Conference3rd IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2003
國家/地區Germany
城市Darmstadt
期間14/12/0317/12/03

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