Statistical Precoding and Detection Ordering in MIMO Multiple-Access Channels with Decision Feedback Equalization
2011 (English)In: 2011 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC), New York: IEEE , 2011Conference paper (Refereed)
We present a novel approach for joint transmitter-receiver design in the uplink of a wireless multiple-input multiple-output communication system. It applies to, e. g., a fast-fading frequency-division duplexing system with periodic pilot signaling from each user - a scenario hindering transmitter optimization based on channel state information (CSI), while CSI-based receiver optimization is possible. Each user multiplexes data onto several, independently coded data streams processed by a linear precoder, and detected at a base station (BS) employing zero-forcing decision feedback (DF) equalization, eliminating all interference prior to detection. We target the problem of jointly designing fixed linear precoders for all users as well as a fixed detection order for the DF receiver based on long-term channel statistics. We propose an efficiently implementable alternating-minimization technique that is verified numerically to converge fast, and to outperform the popular V-BLAST scheme -a computationally more complex ordered-DF receiver with limited applicability by requiring equal-rate data streams in the system.
Place, publisher, year, edition, pages
New York: IEEE , 2011.
, IEEE International Conference on Communications, ISSN 1550-3607
MIMO systems, communication systems, precoders, decision feedback equalizers, fading channels
IdentifiersURN: urn:nbn:se:kth:diva-55280DOI: 10.1109/icc.2011.5963271ISI: 000296057104152ScopusID: 2-s2.0-80052171325ISBN: 978-1-61284-233-2OAI: oai:DiVA.org:kth-55280DiVA: diva2:471185
IEEE International Conference on Communications (ICC) JUN 05-09, 2011 Kyoto, JAPAN
QC 201201022012-01-022012-01-022016-05-02Bibliographically approved