Distributed user-centric clustering and precoding design for CoMP joint transmission

Sandra Lagen; Adrian Agustin; Josep Vidal; Beatriz Soret; Klaus I. Pedersen

doi:10.1109/GLOCOM.2014.7417090

Distributed user-centric clustering and precoding design for CoMP joint transmission

Sandra Lagen, Adrian Agustin, Josep Vidal, Beatriz Soret, Klaus I. Pedersen

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

9 Citations (Scopus)

Abstract

This paper addresses distributed interference management in downlink of multi-cell multiple- input multiple-output (MIMO) time division duplex (TDD) networks. Each user is associated with a user-centric cluster of base stations (BSs), which cooperatively serve the user through CoMP joint transmission. Clusters of different users possibly share some BSs such that they may overlap, being coupled by interference and transmit power constraints at each BS. Our objective is the design of BSs clustering and precoding matrices per-user in order to maximize the weighted sum- rate of the system by controlling the interference and the power spent at BSs. In contrast to previous works where all channel matrices in the system are needed, we propose a distributed procedure whereby only channel matrices towards a limited number of candidate BSs per user are required while interference is still controlled by using the signal received from an uplink transmission. For an LTE-compliant dense deployment of 2x2 MIMO BSs/users, results show gains of 6-16% in terms of sum-rate and 49-84% in terms of 5%-tile per-user rate (depending on the maximum cluster size) as compared to distributed BS-disjoint clustering schemes.

Original language	English
Title of host publication	2015 IEEE Global Communications Conference, GLOBECOM 2015
Publisher	IEEE (Institute of Electrical and Electronics Engineers)
Publication date	2015
Article number	7417090
ISBN (Electronic)	9781479959525
DOIs	https://doi.org/10.1109/GLOCOM.2014.7417090
Publication status	Published - 2015
Event	58th IEEE Global Communications Conference, GLOBECOM 2015 - San Diego, United States Duration: 6 Dec 2015 → 10 Dec 2015

Conference

Conference	58th IEEE Global Communications Conference, GLOBECOM 2015
Country/Territory	United States
City	San Diego
Period	06/12/2015 → 10/12/2015

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@inproceedings{ef71341de8aa4caca405a1348cc31fa5,

title = "Distributed user-centric clustering and precoding design for CoMP joint transmission",

abstract = "This paper addresses distributed interference management in downlink of multi-cell multiple- input multiple-output (MIMO) time division duplex (TDD) networks. Each user is associated with a user-centric cluster of base stations (BSs), which cooperatively serve the user through CoMP joint transmission. Clusters of different users possibly share some BSs such that they may overlap, being coupled by interference and transmit power constraints at each BS. Our objective is the design of BSs clustering and precoding matrices per-user in order to maximize the weighted sum- rate of the system by controlling the interference and the power spent at BSs. In contrast to previous works where all channel matrices in the system are needed, we propose a distributed procedure whereby only channel matrices towards a limited number of candidate BSs per user are required while interference is still controlled by using the signal received from an uplink transmission. For an LTE-compliant dense deployment of 2x2 MIMO BSs/users, results show gains of 6-16% in terms of sum-rate and 49-84% in terms of 5%-tile per-user rate (depending on the maximum cluster size) as compared to distributed BS-disjoint clustering schemes.",

author = "Sandra Lagen and Adrian Agustin and Josep Vidal and Beatriz Soret and Pedersen, {Klaus I.}",

year = "2015",

doi = "10.1109/GLOCOM.2014.7417090",

language = "English",

booktitle = "2015 IEEE Global Communications Conference, GLOBECOM 2015",

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note = "58th IEEE Global Communications Conference, GLOBECOM 2015 ; Conference date: 06-12-2015 Through 10-12-2015",

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Lagen, S, Agustin, A, Vidal, J, Soret, B & Pedersen, KI 2015, Distributed user-centric clustering and precoding design for CoMP joint transmission. in 2015 IEEE Global Communications Conference, GLOBECOM 2015., 7417090, IEEE (Institute of Electrical and Electronics Engineers), 58th IEEE Global Communications Conference, GLOBECOM 2015, San Diego, United States, 06/12/2015. https://doi.org/10.1109/GLOCOM.2014.7417090

Distributed user-centric clustering and precoding design for CoMP joint transmission. / Lagen, Sandra; Agustin, Adrian; Vidal, Josep et al.
2015 IEEE Global Communications Conference, GLOBECOM 2015. IEEE (Institute of Electrical and Electronics Engineers), 2015. 7417090.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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AU - Agustin, Adrian

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AU - Pedersen, Klaus I.

PY - 2015

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N2 - This paper addresses distributed interference management in downlink of multi-cell multiple- input multiple-output (MIMO) time division duplex (TDD) networks. Each user is associated with a user-centric cluster of base stations (BSs), which cooperatively serve the user through CoMP joint transmission. Clusters of different users possibly share some BSs such that they may overlap, being coupled by interference and transmit power constraints at each BS. Our objective is the design of BSs clustering and precoding matrices per-user in order to maximize the weighted sum- rate of the system by controlling the interference and the power spent at BSs. In contrast to previous works where all channel matrices in the system are needed, we propose a distributed procedure whereby only channel matrices towards a limited number of candidate BSs per user are required while interference is still controlled by using the signal received from an uplink transmission. For an LTE-compliant dense deployment of 2x2 MIMO BSs/users, results show gains of 6-16% in terms of sum-rate and 49-84% in terms of 5%-tile per-user rate (depending on the maximum cluster size) as compared to distributed BS-disjoint clustering schemes.

AB - This paper addresses distributed interference management in downlink of multi-cell multiple- input multiple-output (MIMO) time division duplex (TDD) networks. Each user is associated with a user-centric cluster of base stations (BSs), which cooperatively serve the user through CoMP joint transmission. Clusters of different users possibly share some BSs such that they may overlap, being coupled by interference and transmit power constraints at each BS. Our objective is the design of BSs clustering and precoding matrices per-user in order to maximize the weighted sum- rate of the system by controlling the interference and the power spent at BSs. In contrast to previous works where all channel matrices in the system are needed, we propose a distributed procedure whereby only channel matrices towards a limited number of candidate BSs per user are required while interference is still controlled by using the signal received from an uplink transmission. For an LTE-compliant dense deployment of 2x2 MIMO BSs/users, results show gains of 6-16% in terms of sum-rate and 49-84% in terms of 5%-tile per-user rate (depending on the maximum cluster size) as compared to distributed BS-disjoint clustering schemes.

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ER -

Distributed user-centric clustering and precoding design for CoMP joint transmission

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