TY - JOUR
T1 - Optimization of transmit-beam number and power allocation for generic correlated MIMO rayleigh channels
AU - Li, Jiangyuan
AU - Zhang, Q. T.
AU - Song, S. H.
PY - 2009
Y1 - 2009
N2 - The optimal transmit-beam number and power allocation over generic correlated multiple-input multiple-output (MIMO) Rayleigh fading channels are investigated. By fully exploiting the algebraic structures and properties of the optimization problem, we obtain a procedure for determining the thresholds of optimal beam number and derive a set of elementary equations for optimal power allocation, which can be efficiently solved by using a Broyden-like method. A closed-form criterion for the optimality of beamforming is also proposed. Numerical results are presented for illustration.
AB - The optimal transmit-beam number and power allocation over generic correlated multiple-input multiple-output (MIMO) Rayleigh fading channels are investigated. By fully exploiting the algebraic structures and properties of the optimization problem, we obtain a procedure for determining the thresholds of optimal beam number and derive a set of elementary equations for optimal power allocation, which can be efficiently solved by using a Broyden-like method. A closed-form criterion for the optimality of beamforming is also proposed. Numerical results are presented for illustration.
KW - Channel capacity
KW - Covariance feedback
KW - Multipleantenna systems
KW - Transmit/receive correlation
KW - Transmitter optimization
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000268852500018
UR - https://openalex.org/W2137897921
UR - https://www.scopus.com/pages/publications/69549090101
U2 - 10.1109/TCOMM.2009.08.070413
DO - 10.1109/TCOMM.2009.08.070413
M3 - Journal Article
SN - 0090-6778
VL - 57
SP - 2255
EP - 2259
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 8
ER -