An efficient feedback architecture design for three-user MIMO interference channels

Hyunsu Cha, Jinyoung Jang, Sungyoon Cho, Dongku Kim

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

In this paper, an efficient feedback structure is proposed to reduce the feedback overhead of three-user multiple input multiple output interference channels (MIMO-IFC). We present a sequential and iterative feedback structure based on interference cancellation condition. Compared to the previous feedback structure for interference alignment (IA) in K-user MIMO-IFC [1], the proposed method does not need a cooperation between receivers. Even though the proposed scheme inherently requires the infinite number of iterations to remove the residual interference clearly, almost all of the residual interference is eliminated by the low number of iterations enough that its total feedback overhead is dramatically reduced compared to the conventional approach [2]. Furthermore, in order to improve throughput performance, we propose a concatenated receive filter for maximizing the effective SINR.

Original languageEnglish
Pages85-89
Number of pages5
DOIs
Publication statusPublished - 2012 Dec 1
Event18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012 - Jeju Island, Korea, Republic of
Duration: 2012 Oct 152012 Oct 17

Other

Other18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012
CountryKorea, Republic of
CityJeju Island
Period12/10/1512/10/17

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MIMO systems
Feedback
Throughput

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

Cha, H., Jang, J., Cho, S., & Kim, D. (2012). An efficient feedback architecture design for three-user MIMO interference channels. 85-89. Paper presented at 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012, Jeju Island, Korea, Republic of. https://doi.org/10.1109/APCC.2012.6388107
Cha, Hyunsu ; Jang, Jinyoung ; Cho, Sungyoon ; Kim, Dongku. / An efficient feedback architecture design for three-user MIMO interference channels. Paper presented at 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012, Jeju Island, Korea, Republic of.5 p.
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Cha, H, Jang, J, Cho, S & Kim, D 2012, 'An efficient feedback architecture design for three-user MIMO interference channels' Paper presented at 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012, Jeju Island, Korea, Republic of, 12/10/15 - 12/10/17, pp. 85-89. https://doi.org/10.1109/APCC.2012.6388107

An efficient feedback architecture design for three-user MIMO interference channels. / Cha, Hyunsu; Jang, Jinyoung; Cho, Sungyoon; Kim, Dongku.

2012. 85-89 Paper presented at 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012, Jeju Island, Korea, Republic of.

Research output: Contribution to conferencePaper

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AB - In this paper, an efficient feedback structure is proposed to reduce the feedback overhead of three-user multiple input multiple output interference channels (MIMO-IFC). We present a sequential and iterative feedback structure based on interference cancellation condition. Compared to the previous feedback structure for interference alignment (IA) in K-user MIMO-IFC [1], the proposed method does not need a cooperation between receivers. Even though the proposed scheme inherently requires the infinite number of iterations to remove the residual interference clearly, almost all of the residual interference is eliminated by the low number of iterations enough that its total feedback overhead is dramatically reduced compared to the conventional approach [2]. Furthermore, in order to improve throughput performance, we propose a concatenated receive filter for maximizing the effective SINR.

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Cha H, Jang J, Cho S, Kim D. An efficient feedback architecture design for three-user MIMO interference channels. 2012. Paper presented at 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012, Jeju Island, Korea, Republic of. https://doi.org/10.1109/APCC.2012.6388107