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dc.contributor.authorKhoshnevis, Ahmad
Sabharwal, Ashutosh
dc.creatorKhoshnevis, Ahmad
Sabharwal, Ashutosh
dc.date.accessioned 2007-10-31T00:49:54Z
dc.date.available 2007-10-31T00:49:54Z
dc.date.issued 2004-10-01
dc.date.submitted 2004-10-01
dc.identifier.urihttps://hdl.handle.net/1911/20021
dc.description Conference Paper
dc.description.abstract We quantify the multiplexing-diversity tradeoff of a multiple-input multiple-output (MIMO) system, when the channel state information (CSI) is known perfectly at the receiver and partially at the transmitter. The partial knowledge of CSI at the transmitter consists of the quantized value of one of the eigenvalues and perfect knowledge of eigenvectors of the channel matrix. The key result is that while multiplexing gain cannot be increased beyond minimum number of transmit and receive antennas, diversity order for each multiplexing gain can be substantially increased by using only a few bits of feedback at the transmitter. For example, with 1 bit of feedback in a 2x3 system, for multiplexing gains of 0, 1, and 2, diversity gains of 42, 6, and 2 can be achieved, respectively. Thus, while the tradeoff between diversity advantage and multiplexing gain is still present, its behavior is significantly changed by channel knowledge at the transmitter. The major reason for this different tradeoff can be attributed to addition of long-term power control, which allows the transmitter to switch between modes for reducing outage and increasing throughput based on signal to noise ratio along different eigenvalues.
dc.language.iso eng
dc.subjectFinite Feedback
Diversity-Multiplexing tradeoff
multiple antenna
MIMO
power control
dc.title On Diversity and Multiplexing Gain of Multiple Antenna Systems with Transmitter Channel Information
dc.type Conference paper
dc.date.note 2004-08-20
dc.citation.bibtexName inproceedings
dc.date.modified 2004-08-21
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)
dc.subject.keywordFinite Feedback
Diversity-Multiplexing tradeoff
multiple antenna
MIMO
power control
dc.citation.location Monticello, IL
dc.citation.conferenceName Allerton Conference on Communication, Control and Computing
dc.type.dcmi Text
dc.type.dcmi Text
dc.identifier.citation A. Khoshnevis and A. Sabharwal, "On Diversity and Multiplexing Gain of Multiple Antenna Systems with Transmitter Channel Information," 2004.


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    Publications by Rice University Electrical and Computer Engineering faculty and graduate students

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