Ergodic capacity achieving transmit strategy in MIMO systems with statistical and short-term norm CSI
2007 (English)In: 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, IEEE , 2007, 393-396 p.Conference paper (Refereed)
The type and quality of the channel state information at the transmitter of a fading multiple-input multiple-output system greatly affects the ergodic capacity of the wireless link. In order to compare and unify the different proposals of transmit strategies for different scenarios, recently classes of MIMO channels are introduced that share a common optimal transmit strategy. In this work, we derive the ergodic capacity achieving transmit strategy for the class of unitary invariant norm feedback which complements statistical channel information at the transmitter. The impact of the short-term feedback quality is illustrated by the beamforming optimality range. The higher the feedback norm is the more likely is single stream beamforming to be optimal.
Place, publisher, year, edition, pages
IEEE , 2007. 393-396 p.
, International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
MIMO system, ergodic capacity, short-term and long-term CSI, unitary invariant norm feedback
Signal Processing Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-34955DOI: 10.1109/ICASSP.2007.366555ISI: 000248906600099ScopusID: 2-s2.0-34547534114OAI: oai:DiVA.org:kth-34955DiVA: diva2:427374
32nd IEEE International Conference on Acoustics, Speech and Signal Processing Honolulu, HI, APR 15-20, 2007
QC 201106282011-06-282011-06-172012-05-29Bibliographically approved