On the degrees-of-freedom of the MIMO three-way channel with intermittent connectivity

Anas Chaaban; Aydin Sezgin; Mohamed Slim Alouini

doi:10.1109/ISIT.2017.8006587

On the degrees-of-freedom of the MIMO three-way channel with intermittent connectivity

Anas Chaaban, Aydin Sezgin, Mohamed Slim Alouini

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

The degrees-of-freedom (DoF) of the multi-antenna three-way channel (3WC) with an intermittent node is studied. Special attention is given to the impact of adaptation when the intermittent node has the largest number of antennas. A non-adaptive transmission scheme based on interference alignment, zero-forcing, and erasure-channel treatment is proposed, and its corresponding DoF region is derived. Then, it is shown that this scheme achieves the sum-DoF of the intermittent channel, in addition to the DoF region of the nonintermittent one. Thus, adaptation is not necessary from those perspectives. To the contrary, it is shown that adaptation is necessary for achieving the DoF region of the intermittent case. This is shown by deriving an outer bound for the intermittent channel with nonadaptive encoding, and proposing an adaptive scheme which achieves DoF tuples outside this bound. This highlights the importance of cooperation in this intermittent network.

Original language	English (US)
Title of host publication	2017 IEEE International Symposium on Information Theory, ISIT 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	546-550
Number of pages	5
ISBN (Electronic)	9781509040964
DOIs	https://doi.org/10.1109/ISIT.2017.8006587
State	Published - Aug 9 2017
Event	2017 IEEE International Symposium on Information Theory, ISIT 2017 - Aachen, Germany Duration: Jun 25 2017 → Jun 30 2017

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings
ISSN (Print)	2157-8095

Conference

Conference	2017 IEEE International Symposium on Information Theory, ISIT 2017
Country/Territory	Germany
City	Aachen
Period	06/25/17 → 06/30/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

ASJC Scopus subject areas

Theoretical Computer Science
Information Systems
Applied Mathematics
Modeling and Simulation

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10.1109/ISIT.2017.8006587

Cite this

Chaaban, A., Sezgin, A., & Alouini, M. S. (2017). On the degrees-of-freedom of the MIMO three-way channel with intermittent connectivity. In 2017 IEEE International Symposium on Information Theory, ISIT 2017 (pp. 546-550). Article 8006587 (IEEE International Symposium on Information Theory - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISIT.2017.8006587

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abstract = "The degrees-of-freedom (DoF) of the multi-antenna three-way channel (3WC) with an intermittent node is studied. Special attention is given to the impact of adaptation when the intermittent node has the largest number of antennas. A non-adaptive transmission scheme based on interference alignment, zero-forcing, and erasure-channel treatment is proposed, and its corresponding DoF region is derived. Then, it is shown that this scheme achieves the sum-DoF of the intermittent channel, in addition to the DoF region of the nonintermittent one. Thus, adaptation is not necessary from those perspectives. To the contrary, it is shown that adaptation is necessary for achieving the DoF region of the intermittent case. This is shown by deriving an outer bound for the intermittent channel with nonadaptive encoding, and proposing an adaptive scheme which achieves DoF tuples outside this bound. This highlights the importance of cooperation in this intermittent network.",

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Chaaban, A, Sezgin, A & Alouini, MS 2017, On the degrees-of-freedom of the MIMO three-way channel with intermittent connectivity. in 2017 IEEE International Symposium on Information Theory, ISIT 2017., 8006587, IEEE International Symposium on Information Theory - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 546-550, 2017 IEEE International Symposium on Information Theory, ISIT 2017, Aachen, Germany, 06/25/17. https://doi.org/10.1109/ISIT.2017.8006587

On the degrees-of-freedom of the MIMO three-way channel with intermittent connectivity. / Chaaban, Anas; Sezgin, Aydin; Alouini, Mohamed Slim.
2017 IEEE International Symposium on Information Theory, ISIT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 546-550 8006587 (IEEE International Symposium on Information Theory - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Chaaban A, Sezgin A, Alouini MS. On the degrees-of-freedom of the MIMO three-way channel with intermittent connectivity. In 2017 IEEE International Symposium on Information Theory, ISIT 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 546-550. 8006587. (IEEE International Symposium on Information Theory - Proceedings). doi: 10.1109/ISIT.2017.8006587

On the degrees-of-freedom of the MIMO three-way channel with intermittent connectivity

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