Sensitivity of Feedback Channel Delay on Transmit Adaptive Array 


Vol. 27,  No. 6, pp. 579-585, Jun.  2002


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  Abstract

The investigation into the effect of various feedback errors on system performance can help the robust feedback channel design and transmission of exact feedback channel information as well. In this paper, we address the algorithm that determines space combining weight vector maximizing received signal power at mobile on frequency flat fading channel and investigate the performance degradation by feedback channel delay in the FDD/CDMA systems employing transmit beamforming. We observe the effect of feedback channel delay corresponding to the number of transmit antennas and the temporal/spatial correlation of channel. The results show that performance is more sensitive to feedback delay with the larger number of antennas when fadings at transmit antennas are not spatially correlated.

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  Cite this article

[IEEE Style]

C. Y. Ahn, J. K. Han, D. K. Kim, "Sensitivity of Feedback Channel Delay on Transmit Adaptive Array," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 6, pp. 579-585, 2002. DOI: .

[ACM Style]

Cheol Yong Ahn, Jin Kyu Han, and Dong Ku Kim. 2002. Sensitivity of Feedback Channel Delay on Transmit Adaptive Array. The Journal of Korean Institute of Communications and Information Sciences, 27, 6, (2002), 579-585. DOI: .

[KICS Style]

Cheol Yong Ahn, Jin Kyu Han, Dong Ku Kim, "Sensitivity of Feedback Channel Delay on Transmit Adaptive Array," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 6, pp. 579-585, 6. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880