Interference management strategies for multiuser multicell MIMO VLC systems

Name: Interference management strategies for multiuser multicell MIMO VLC systems
Author: Naser, S., Bariah, L., Muhaidat, S., Al-Qutayri, M., Uysal, Murat, Sofotasios, P. C.

İsim	Interference management strategies for multiuser multicell MIMO VLC systems
Yazar	Naser, S., Bariah, L., Muhaidat, S., Al-Qutayri, M., Uysal, Murat, Sofotasios, P. C.
Basım Tarihi:	2022-09
Basım Yeri	- IEEE
Konu	Cooperation strategies, Coordinated beamforming, Multiple-input multiple-output (MIMO), Rate-splitting multiple access (RSMA), Space-division multiple access (SDMA), Visible light communications (VLC)
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0090-6778
Kayıt Numarası	9d95b350-51c7-46d1-9a58-adb8cff9440a
Lokasyon	Electrical & Electronics Engineering
Tarih	2022-09
Örnek Metin	This paper investigates different precoding strategies for rate splitting multiple access (RSMA) in the downlink of multi-cell visible light communication (VLC) networks. Since classical Shannon capacity formula does not hold for VLC, we first provide a lower bound on the channel capacity for RSMA in such interfering networks. Then, we formulate a spectral efficiency maximization problem to jointly find the optimal rate-splitting and transmit precoding. Beside that, since cell-edge users suffer from additional inter-cell interference, we propose to design the precoders of different RSMA signals utilizing coordinated beamforming (CB). Subsequently, aiming to improve the performance of the CB design for RSMA, while maintain a reduced complexity, we introduce two enhanced precoding strategies for RSMA. To the best of the authors' knowledge such a contribution has not been considered before in the open literature. It is shown in the paper that the formulated optimization problem is non-convex and a sub-optimal, yet, a low complexity solution can be obtained efficiently using semi-definite relaxation combined with successive convex approximation. Through analytical results, we illustrate the flexibility and superiority of the proposed precoding strategies for RSMA over conventional coordinated space division multiple access and non-orthogonal multiple access for different scenarios and network loads.
DOI	10.1109/TCOMM.2022.3190349
Cilt	70

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Interference management strategies for multiuser multicell MIMO VLC systems

Yazar Naser, S., Bariah, L., Muhaidat, S., Al-Qutayri, M., Uysal, Murat, Sofotasios, P. C.

Basım Tarihi 2022-09

Basım Yeri - IEEE

Konu Cooperation strategies, Coordinated beamforming, Multiple-input multiple-output (MIMO), Rate-splitting multiple access (RSMA), Space-division multiple access (SDMA), Visible light communications (VLC)

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0090-6778

Kayıt Numarası 9d95b350-51c7-46d1-9a58-adb8cff9440a

Lokasyon Electrical & Electronics Engineering

Tarih 2022-09

Örnek Metin This paper investigates different precoding strategies for rate splitting multiple access (RSMA) in the downlink of multi-cell visible light communication (VLC) networks. Since classical Shannon capacity formula does not hold for VLC, we first provide a lower bound on the channel capacity for RSMA in such interfering networks. Then, we formulate a spectral efficiency maximization problem to jointly find the optimal rate-splitting and transmit precoding. Beside that, since cell-edge users suffer from additional inter-cell interference, we propose to design the precoders of different RSMA signals utilizing coordinated beamforming (CB). Subsequently, aiming to improve the performance of the CB design for RSMA, while maintain a reduced complexity, we introduce two enhanced precoding strategies for RSMA. To the best of the authors' knowledge such a contribution has not been considered before in the open literature. It is shown in the paper that the formulated optimization problem is non-convex and a sub-optimal, yet, a low complexity solution can be obtained efficiently using semi-definite relaxation combined with successive convex approximation. Through analytical results, we illustrate the flexibility and superiority of the proposed precoding strategies for RSMA over conventional coordinated space division multiple access and non-orthogonal multiple access for different scenarios and network loads.

DOI 10.1109/TCOMM.2022.3190349

Cilt 70