Elements of information theory
Elements of information theory
Wireless Communications
Fundamentals of wireless communication
Fundamentals of wireless communication
On the marginal distribution of the eigenvalues ofWishart matrices
IEEE Transactions on Communications
IEEE Transactions on Wireless Communications
On the capacity of doubly correlated MIMO channels
IEEE Transactions on Wireless Communications
Capacity of MIMO Rician fading channels with transmitter and receiver channel state information
IEEE Transactions on Wireless Communications - Part 1
Limiting performance of block-fading channels with multiple antennas
IEEE Transactions on Information Theory
On the capacity of spatially correlated MIMO Rayleigh-fading channels
IEEE Transactions on Information Theory
Capacity of multiple-antenna systems with both receiver and transmitter channel state information
IEEE Transactions on Information Theory
Capacity of MIMO systems with semicorrelated flat fading
IEEE Transactions on Information Theory
Approaching the Zero-Outage Capacity of MIMO-OFDM Without Instantaneous Water-Filling
IEEE Transactions on Information Theory
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We investigate high spectral efficiency wireless multiple-input multiple-output (MIMO) systems in fading environments. We assume frequency flat fading, channel state information at both the transmitter and receiver sides, and linear precoding based on singular value decomposition (SVD). For this MIMO SVD scenario, the optimal solution in terms of achievable rate requires water-filling to optimally allocate the power to the different channel eigenmodes. Alternatively, reduced complexity power allocation methods can be employed, where the allocation is based on statistical expectations of functions related to the singular values of the channel gain matrix. In this paper we study these power allocation methods, by using the exact distribution of an arbitrary (ordered) eigenvalue of Wishart matrices, with the probability density function of the lth largest eigenvalue given as a sum of terms xβ e-xδ. We derive expressions for the achievable rate for both zero-outage and non-zero-outage strategies. We show that, often, the low-complexity methods have performance very similar to water-filling methods.