Tight lower bounds on the ergodic capacity of Rayleigh fading MIMO channels
- 22 March 2004
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2, 1172-1176vol.2
- https://doi.org/10.1109/glocom.2002.1188380
Abstract
We consider Gaussian multiple-input multiple-output (MIMO) fading channels assuming that the channel is unknown at the transmitter and perfectly known at the receiver. Using results from multivariate statistics, we derive a tight closed-form lower-bound for the ergodic capacity of such channels at any signal-to-noise ratio (SNR). Moreover, we provide an accurate closed-form analytical approximation of ergodic capacity in the high SNR regime. Our analysis incorporates the frequency-selective Rayleigh fading case and/or spatial fading correlation, and allows Important Insights Into optimal (ergodic capacity maximizing) MIMO configurations. Finally, we verify our analytical expressions through comparison with numerical results.Keywords
This publication has 10 references indexed in Scilit:
- Capacity of multiple antenna systems in Rayleigh fading channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- On the capacity of OFDM-based spatial multiplexing systemsIEEE Transactions on Communications, 2002
- Rayleigh Fading Multi-Antenna ChannelsEURASIP Journal on Advances in Signal Processing, 2002
- Elements of Information TheoryPublished by Wiley ,2001
- Capacity of Multi‐antenna Gaussian ChannelsEuropean Transactions on Telecommunications, 1999
- Fading channels: information-theoretic and communications aspectsIEEE Transactions on Information Theory, 1998
- Spatio-temporal coding for wireless communicationIEEE Transactions on Communications, 1998
- On Limits of Wireless Communications in a Fading Environment when Using Multiple AntennasWireless Personal Communications, 1998
- Matrix AnalysisPublished by Cambridge University Press (CUP) ,1985
- The Distribution of the Determinant of a Complex Wishart Distributed MatrixThe Annals of Mathematical Statistics, 1963