Downlink Performance of Transmit Adaptive Array with Antenna Selection Diversity 


Vol. 27,  No. 12, pp. 1121-1128, Dec.  2002


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  Abstract

The transmit adaptive array requires the forward link channel information for evaluating the optimum transmit weight vector in which a feedback channel provides transmitter with the forward link channel information. The feedback channel information is linearly increased as the number of transmit antennas increases, so that the reverse link channel conveying feedback information has a very limited capacity. In this paper, we propose the transmit adaptive array with antenna selection diversity, which can considerably reduce the number of feedback bits while achieving the almost same performance as that of the conventional transmit adaptive array system.Both system performances and the required feedback bits for channel information are also investigated for the different number of transmit antennas and different antenna selection diversity schemes on a temporally and spatially correlated fading channel through link level simulation. The results show that the proposed system can save the feedback bits by 33%-42% as well as can obtain the almost same petgotmance as that of the conventional transmit adaptive array system when the fading channels associated with the multiple transmit antennas are not spatially correlated

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  Cite this article

[IEEE Style]

C. Y. Ahn, J. K. Han, D. K. Kim, "Downlink Performance of Transmit Adaptive Array with Antenna Selection Diversity," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 12, pp. 1121-1128, 2002. DOI: .

[ACM Style]

Cheol Yong Ahn, Jin Kyu Han, and Dong Ku Kim. 2002. Downlink Performance of Transmit Adaptive Array with Antenna Selection Diversity. The Journal of Korean Institute of Communications and Information Sciences, 27, 12, (2002), 1121-1128. DOI: .

[KICS Style]

Cheol Yong Ahn, Jin Kyu Han, Dong Ku Kim, "Downlink Performance of Transmit Adaptive Array with Antenna Selection Diversity," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 12, pp. 1121-1128, 12. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880