Back to Search

Coordinated beamforming design for multi-user multi-cell MIMO VLC networks

Title	Coordinated beamforming design for multi-user multi-cell MIMO VLC networks
Author	Naser, S., Bariah, L., Jaafar, W., Muhaidat, S., Al-Qutayri, M., Uysal, Murat, Sofotasios, P. C.
Publication Date:	2022-06
Publication Place	- IEEE
Subject	Coordinated beamforming, Energy efficiency, MIMO, Multicell communications, Optimization, RSMA, Spectral efficiency, VLC
Type	Periodical
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	1943-0655
Record ID	bfec2584-a6b0-4a4f-8a4b-b269ba044000
Library Location	Electrical & Electronics Engineering
Date	2022-06
Sample Text	Inter-cell interference (ICI) and inter-user interference (IUI) constitute a major issue towards achieving the optimum spectral efficiency (SE) and energy efficiency (EE) performance in multi-cell visible light communication (VLC) networks. Hence, advanced multiple access techniques need to be leveraged in order to improve the provided service to the users of such interfering networks. To this end, the present contribution proposes the integration of coordinated beamforming (CB) with rate-splitting multiple access (RSMA) in multi-cell VLC systems. Specifically, we consider the design of beamformers for the common and private streams in a coordinated manner between different attocells, which is shown to provide efficient mitigation of the incurred interference. Additionally, the formulated optimization problem aims to minimize the sum of the mean squared error across all attocells in order to jointly determine the optimum receive filters and coordinated transmit beamformers for RSMA streams. In this context, we illustrate through extensive computer simulations, which are carried out in a realistic setup that assumes noisy channel state information acquisition, the distinct flexibility and robustness of CB-based RSMA in mitigating the incurred interference. Finally, the offered results demonstrate the superiority of CB-based RSMA in terms of achievable SE and EE performance in multi-cell VLC networks compared to the conventional CB-based space division multiple access counterpart.
DOI	10.1109/JPHOT.2022.3169233
Cilt	14

View in source Özyeğin University Özyeğin University - Historical works, archives, and periodicals search engine

Özyeğin University

Coordinated beamforming design for multi-user multi-cell MIMO VLC networks

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

Publication Date 2022-06

Publication Place - IEEE

Subject Coordinated beamforming, Energy efficiency, MIMO, Multicell communications, Optimization, RSMA, Spectral efficiency, VLC

Type Periodical

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 1943-0655

Record ID bfec2584-a6b0-4a4f-8a4b-b269ba044000

Library Location Electrical & Electronics Engineering

Date 2022-06

Sample Text Inter-cell interference (ICI) and inter-user interference (IUI) constitute a major issue towards achieving the optimum spectral efficiency (SE) and energy efficiency (EE) performance in multi-cell visible light communication (VLC) networks. Hence, advanced multiple access techniques need to be leveraged in order to improve the provided service to the users of such interfering networks. To this end, the present contribution proposes the integration of coordinated beamforming (CB) with rate-splitting multiple access (RSMA) in multi-cell VLC systems. Specifically, we consider the design of beamformers for the common and private streams in a coordinated manner between different attocells, which is shown to provide efficient mitigation of the incurred interference. Additionally, the formulated optimization problem aims to minimize the sum of the mean squared error across all attocells in order to jointly determine the optimum receive filters and coordinated transmit beamformers for RSMA streams. In this context, we illustrate through extensive computer simulations, which are carried out in a realistic setup that assumes noisy channel state information acquisition, the distinct flexibility and robustness of CB-based RSMA in mitigating the incurred interference. Finally, the offered results demonstrate the superiority of CB-based RSMA in terms of achievable SE and EE performance in multi-cell VLC networks compared to the conventional CB-based space division multiple access counterpart.

DOI 10.1109/JPHOT.2022.3169233

Cilt 14