• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Low-Overhead Feedback Topology Design for the K-User MIMO Interference Alignment


Abstract

Since designing a feedback topology is a practical way to implement interference alignment at reduced cost of channel state information (CSI) feedback, six feedback topologies have been presented in prior works for a K-user multiple-input multiple-output interference channel. To fully reveal the potential benefits of the feedback topology in terms of the saving of CSI overhead, we propose a new feedback topology in this paper. By efficiently performing dimensionality-decreasing at the transmitter side and aligning interference signals at a subset of receivers, we show that the proposed feedback topology obtains substantial reduction of feedback cost over the existing six feedback designs under the same antenna configuration.


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Cite this article

[IEEE Style]
J. Jin, X. Gao, X. Li, C. C. Cavalcante and L. Li, "Low-Overhead Feedback Topology Design for the K-User MIMO Interference Alignment," KSII Transactions on Internet and Information Systems, vol. 12, no. 11, pp. 5304-5322, 2018. DOI: 10.3837/tiis.2018.11.008.

[ACM Style]
Jin Jin, Xiang-Chuan Gao, Xingwang Li, Charles C. Cavalcante, and Lihua Li. 2018. Low-Overhead Feedback Topology Design for the K-User MIMO Interference Alignment. KSII Transactions on Internet and Information Systems, 12, 11, (2018), 5304-5322. DOI: 10.3837/tiis.2018.11.008.

[BibTeX Style]
@article{tiis:21920, title="Low-Overhead Feedback Topology Design for the K-User MIMO Interference Alignment", author="Jin Jin and Xiang-Chuan Gao and Xingwang Li and Charles C. Cavalcante and Lihua Li and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2018.11.008}, volume={12}, number={11}, year="2018", month={November}, pages={5304-5322}}