NDLI: Covariance-based linear precoding

Content Provider	IEEE Xplore Digital Library
Author	Zerlin, B. Joham, M. Utschick, W. Nossek, J.A.
Copyright Year	1983
Abstract	This paper extends the self-contained theory of linear precoding to the field of covariance based spatio-temporal downlink processing for direct-sequence code-division multiple-access (CDMA) systems and shows the applicability to the release 6 of high-speed downlink packet access (HSDPA). To this end, a unifying theory is developed to formulate the three known linear filters, namely, the transmit matched filter, the transmit zero-forcing filter, and the transmit Wiener filter, as optimization problems even in systems, where only covariance knowledge is available at the transmitter. Second, the solutions of these transmit filters are given for such systems with partial channel state information (CSI). Finally, it is shown how covariance-based linear precoding can be employed in the new generation CDMA system HSDPA, i.e., how channel estimation on the secondary common pilot channel allows for optimum full rank linear precoding employing only partial CSI.
Starting Page	190
Ending Page	199
Page Count	10
File Size	609501
File Format	PDF
ISSN	07338716
Volume Number	24
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Wiener filter Nonlinear filters Matched filters Downlink Filtering theory Transmitters Information filtering Information filters Channel state information transmit processing Code-division multiple-access (CDMA) common pilot channels covariance-based precoding high-speed downlink packet access (HSDPA) linear precoding multiple-input–single-output (MISO) downlink partial channel state information (CSI)
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Electrical and Electronic Engineering

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