TY - GEN
T1 - Multiuser MIMO downlink made practical
T2 - VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
AU - Clerckx, Bruno
AU - Mazzarese, David
AU - Kim, Gil
AU - Kim, Sungjin
PY - 2009
Y1 - 2009
N2 - Multi-User (MU) Muliple Input-Multiple Output (MIMO) has become an essential technology to achieve IMT advanced requirements. Performance of limited feedback MultiUser MIMO in spatially and time correlated channels are investigated in this paper. A special attention is drawn to the case where users have the opportunity to adapt their codebooks as a function of their own channel statistics (i.e. transmit correlation, time correlation or channel imbalance in dual-polarized scenarios). New codebook designs are provided for various propagation conditions. We show by analytical derivations (e.g. sum-rate analysis) and confirm by simulations how those channel statistics can be efficiently exploited in the design of Multi-User MIMO schemes with very low feedback overhead and low complexity. Those approaches are currently strong candidates to boost performance of IEEE 802.16m way beyond IEEE 802.16e and 3GPP LTE.
AB - Multi-User (MU) Muliple Input-Multiple Output (MIMO) has become an essential technology to achieve IMT advanced requirements. Performance of limited feedback MultiUser MIMO in spatially and time correlated channels are investigated in this paper. A special attention is drawn to the case where users have the opportunity to adapt their codebooks as a function of their own channel statistics (i.e. transmit correlation, time correlation or channel imbalance in dual-polarized scenarios). New codebook designs are provided for various propagation conditions. We show by analytical derivations (e.g. sum-rate analysis) and confirm by simulations how those channel statistics can be efficiently exploited in the design of Multi-User MIMO schemes with very low feedback overhead and low complexity. Those approaches are currently strong candidates to boost performance of IEEE 802.16m way beyond IEEE 802.16e and 3GPP LTE.
UR - http://www.scopus.com/inward/record.url?scp=70349669101&partnerID=8YFLogxK
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U2 - 10.1109/VETECS.2009.5073705
DO - 10.1109/VETECS.2009.5073705
M3 - Conference contribution
AN - SCOPUS:70349669101
SN - 9781424425174
T3 - IEEE Vehicular Technology Conference
BT - VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
Y2 - 26 April 2009 through 29 April 2009
ER -