Effect of Spatio-Temporal Channel Correlation on the Performance of Space-Time Codes

Effect of Spatio-Temporal Channel Correlation on the Performance of Space-Time Codes. Fragouli, C., Al-Dhahir, N., & Turin, W. ICC 2002, NY, vol. 2:pages 826–830, 2002.
abstract bibtex

The determinant and rank criteria used for space-time code design apply at high SNR. Code design metrics developed for low SNR assume a channel autocorrelation matrix with equal eigenvalues, which does not hold in many practical scenarios. This paper shows that a space-time code designed to ensure full diversity at high SNR can suffer significant degradation when implemented at low-to-medium SNR because of the channel autocorrelation profile. We examine the effect of the channel autocorrelation matrix on a space-time code's performance and discuss how knowledge of this matrix can be used for code design, particularly from the aspect of space-time trellis code minimum memory requirements. Our discussion applies to both flat-fading and frequency-selective channels that are treated in a unified manner.

@article{fragouli_effect_2002,
 abstract = {The determinant and rank criteria used for space-time code design apply at high SNR. Code design metrics developed for low SNR assume a channel autocorrelation matrix with equal eigenvalues, which does not hold in many practical scenarios. This paper shows that a space-time code designed to ensure full diversity at high SNR can suffer significant degradation when implemented at low-to-medium SNR because of the channel autocorrelation profile. We examine the effect of the channel autocorrelation matrix on a space-time code's performance and discuss how knowledge of this matrix can be used for code design, particularly from the aspect of space-time trellis code minimum memory requirements. Our discussion applies to both flat-fading and frequency-selective channels that are treated in a unified manner.},
 type={4},
 author = {Fragouli, C. and Al-Dhahir, N. and Turin, W.},
 journal = {ICC 2002, NY},
 pages = {pages 826--830},
 tags = {wireless,channel_coding},
 title = {Effect of {Spatio}-{Temporal} {Channel} {Correlation} on the {Performance} of {Space}-{Time} {Codes}},
 volume = {vol. 2},
 year = {2002}
}

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