NDLI: Adaptive algorithm based on pilot-channel for multiuser detection

Content Provider	IEEE Xplore Digital Library
Author	Yi Wang Qiang Xue Sheng Zhou Weiling Wu
Copyright Year	2000
Description	Author affiliation: Beijing Univ. of Posts & Telecommun., China (Yi Wang)
Abstract	A novel adaptive algorithm for MMSE multiuser detection in downlink CDMA is proposed in this paper. This algorithm uses the information in the pilot channel to compute the desired MMSE solution directly. Compared with conventional adaptive algorithms and previously proposed blind algorithms, it does not require training sequences or channel estimation. Analysis shows that the MMSE detector obtained by the algorithm converges to the Wiener solution globally, and the computational complexity is O(N/sup 2/). Simulation examples illustrate that the algorithm can rapidly reach the steady state. The steady state performance can be enhanced by increasing the transmitted power in the pilot channel, but is worse than that of a conventional recursive least-square (RLS) algorithm in decision-directed mode.
Starting Page	1754
Ending Page	1758
File Size	457916
Page Count	5
File Format	PDF
ISBN	0780357477
DOI	10.1109/ICOSP.2000.893440
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-08-21
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive algorithm Multiuser detection Steady-state Downlink Multiaccess communication Channel estimation Algorithm design and analysis Detectors Computational complexity Computational modeling
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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