Projection-Based Efficient Channel Information Feedback for MIMO Systems 


Vol. 44,  No. 10, pp. 1824-1832, Oct.  2019
10.7840/kics.2019.44.10.1824


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  Abstract

The multi-antenna technology can dramatically improve the channel capacity by utilizing the spatial diversity gain, but it needs accurate channel state information at both transmitter and receiver. In addition, the increase in the number of antennas causes the increase in the feedback overhead for delivering channel state information. This paper proposes a projection - based channel information feedback scheme to reduce the feedback overhead while maintaining its accuracy. In the proposed scheme, the sparse differential channel vector is extracted from time correlated channel and then it is projected onto a low dimensional space to reduce the feedback overhead. Through the simulation results, it is shown that the proposed scheme minimize the channel distortion, compared to reference schemes for a given feedback overhead.

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  Cite this article

[IEEE Style]

E. Lee and H. Son, "Projection-Based Efficient Channel Information Feedback for MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 10, pp. 1824-1832, 2019. DOI: 10.7840/kics.2019.44.10.1824.

[ACM Style]

Eun-gwan Lee and Hyuk-min Son. 2019. Projection-Based Efficient Channel Information Feedback for MIMO Systems. The Journal of Korean Institute of Communications and Information Sciences, 44, 10, (2019), 1824-1832. DOI: 10.7840/kics.2019.44.10.1824.

[KICS Style]

Eun-gwan Lee and Hyuk-min Son, "Projection-Based Efficient Channel Information Feedback for MIMO Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 10, pp. 1824-1832, 10. 2019. (https://doi.org/10.7840/kics.2019.44.10.1824)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880