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Extended One-Shot Decorrelating Detector for Asynchronous DS/CDMA Systems

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Authors
Kang, Jee Woong; Lee, Kwang Bok
Issue Date
2003-06
Publisher
Institute of Electronics, Information and Communication Engineers (IEICE)
Citation
IEICE Trans. Commun., vol. E86-B, no. 6, pp. 1901-1909, June 2003
Keywords
multiuser detectordecorrelatorCDMAasynchronous system
Abstract
We propose an extended one-shot decorrelating detector (EOS-DD) which may be viewed as a generalized double window multiuser detector (DW-MD) for asynchronous direct-sequence code-division multiple-access (DS/CDMA) systems in frequency selective fading environments. The EOS-DD extends a processing window and the received signal over an extended window is utilized for decorrelating. The effects of the window size on BER performance are investigated by numerical analysis. Analysis and simulation show that the EOS-DD is superior to the one-shot decorrelating detector (OS-DD) and finite memory length truncated decorrelating detector (FIR-DD) in terms of noise enhancement and near-far resistance. It is also shown that the EOS-DD with window size 4 can provide significantly improved performance compared to the EOS-DD with window size 2.
ISSN
0916-8516
Language
English
URI
http://search.ieice.org/bin/summary.php?id=e86-b_6_1901&category=B

https://hdl.handle.net/10371/7501
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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