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Chinese Conference on Trusted Computing and Information Security

CTCIS 2017: Trusted Computing and Information Security pp 198–212Cite as

New Upper Bounds on Degrees of Freedom for G-MIMO Relay Channel

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Part of the Communications in Computer and Information Science book series (CCIS,volume 704)

Abstract

We study a general type of multiple-input multiple-output (G-MIMO) relay channels, which consist of two groups (A and B) of source nodes and one relay node. Both groups have arbitrarily many source nodes each of which is in turn equipped with an arbitrary number of antennas. A G-MIMO relay channel engages in two-way transmission of independent information via the relay node. We obtain a tight upper bound on the total degrees of freedom (DoF) for such G-MIMO relay channels. Under the reasonable assumption that the number of antennas at the relay node is no more than the total number of antennas of either Group A or Group B, we design an efficient transmission scheme to achieve the upper bound by using techniques of signal alignment and joint transceiver design for interference cancellation. At the end of the paper, we propose a future research topic to quantify the relationship between graded levels of network security and the corresponding DoF of the G-MIMO relay channels.

Keywords

  • Wireless channel
  • G-MIMO relay channel
  • Degrees of freedom
  • Network coding
  • Signal alignment

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Acknowledgments

Xiao Chen and Liang Pang contributed equally to this work and share first authorship. This work was supported in part by the National Natural Science Foundation of China under Grant No. 61332010.

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Authors and Affiliations

  1. Shanghai Key Laboratory of Integrated Administration Technologies for Information Security, Shanghai Jiao Tong University, Shanghai, China

    Xiao Chen, Liang Pang, Pengze Guo & Zhi Xue

  2. Department of Mathematics, Missouri State University, Springfield, MO, 65897, USA

    Xingping Sun

Authors
  1. Xiao Chen
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  2. Liang Pang
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  3. Pengze Guo
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  4. Xingping Sun
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  5. Zhi Xue
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Corresponding author

Correspondence to Xiao Chen .

Editor information

Editors and Affiliations

  1. National University of Defense Technology, Changsha, China

    Ming Xu

  2. Hunan University, Changsha, Hunan, China

    Zheng Qin

  3. Wuhan University, Wuhan, China

    Fei Yan

  4. National University of Defense Technology, Changsha, Hunan, China

    Shaojing Fu

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Chen, X., Pang, L., Guo, P., Sun, X., Xue, Z. (2017). New Upper Bounds on Degrees of Freedom for G-MIMO Relay Channel. In: Xu, M., Qin, Z., Yan, F., Fu, S. (eds) Trusted Computing and Information Security. CTCIS 2017. Communications in Computer and Information Science, vol 704. Springer, Singapore. https://doi.org/10.1007/978-981-10-7080-8_15

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  • DOI: https://doi.org/10.1007/978-981-10-7080-8_15

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