TY - GEN
T1 - MIMO channels in the low SNR regime
T2 - 2004 IEEE Information Theory Workshop - Proceedings, ITW
AU - Wu, Xinzhou
AU - Srikant, R.
PY - 2004
Y1 - 2004
N2 - We consider non-coherent MEMO fading channels and characterize the reliability function in the low-SNR regime as a function of the number of transmit and receive antennas. We assume no CSI is available at the transmitter or the receiver. For the case when the fading matrix H has independent entries, we show that the number of transmit antennas plays a key role in reducing the peakiness in the input signal required to achieve the optimal error exponent for a given communication rate. Further, by considering a correlated channel model, we show that the maximum performance gain (in terms of the error exponent and communication rate) is achieved when the entries of the channel fading matrix are fully correlated.
AB - We consider non-coherent MEMO fading channels and characterize the reliability function in the low-SNR regime as a function of the number of transmit and receive antennas. We assume no CSI is available at the transmitter or the receiver. For the case when the fading matrix H has independent entries, we show that the number of transmit antennas plays a key role in reducing the peakiness in the input signal required to achieve the optimal error exponent for a given communication rate. Further, by considering a correlated channel model, we show that the maximum performance gain (in terms of the error exponent and communication rate) is achieved when the entries of the channel fading matrix are fully correlated.
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M3 - Conference contribution
AN - SCOPUS:19544370324
SN - 0780387201
T3 - 2004 IEEE Information Theory Workshop - Proceedings, ITW
SP - 428
EP - 433
BT - 2004 IEEE Information Theory Workshop - Proceedings, ITW
Y2 - 24 October 2004 through 29 October 2004
ER -