Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/27794
Title: | Total and Minimum Energy Efficiency Tradeoff in Robust Multigroup Multicast Satellite Communications |
Authors: | Jiang, B Yan, Y Zhao, J Xiao, X You, L Zhang, D Lei, J Wang, K Wang, W Gao, X |
Issue Date: | 31-Aug-2023 |
Publisher: | American Association for the Advancement of Science on behalf of Beijing Institute of Technology Press |
Citation: | Jiang, B. et al. (2023) 'Total and Minimum Energy Efficiency Tradeoff in Robust Multigroup Multicast Satellite Communications', Space: Science and Technology (United States), 2023, 3, 0059, pp. 1 - 13. doi: 10.34133/space.0059. |
Abstract: | Copyright © 2023 Bin Jiang et al. Satellite communication is an indispensable part of future wireless communications given its global coverage and long-distance propagation. In satellite communication systems, channel acquisition and energy consumption are two critical issues. To this end, we investigate the tradeoff between the total energy efficiency (TEE) and minimum EE (MEE) for robust multigroup multicast satellite communication systems in this paper. Specifically, under the total power constraint, we investigate the robust beamforming aimed at balancing the TEE-MEE, so as to achieve the balance between the fairness and total performance on the system EE. For this optimization problem, we first model the balancing problem as a nonconvex problem while deriving its approximate closed-form average user rate. Then, the nonconvex problem is handled by solving convex programs sequentially with the help of the semidefinite relaxation and the concave-convex procedure. In addition, depending on the solution rank value, Gaussian randomization and eigenvalue decomposition method are applied to generate the feasible solutions. Finally, simulation results illustrate that the proposed approach can effectively achieve the balance between the TEE and MEE, thus realizing a tradeoff between fairness and system EE performance. It is also indicated that the proposed robust approach outperforms the conventional baselines in terms of EE performance. |
Description: | Data Availability: All data needed to evaluate the conclusions of the study are presented in the paper. |
URI: | https://bura.brunel.ac.uk/handle/2438/27794 |
DOI: | https://doi.org/10.34133/space.0059 |
Other Identifiers: | ORCID iD: Li You https://orcid.org/0000-0001-8600-1423 ORCID iD: Kezhi Wang https://orcid.org/0000-0001-8602-0800 ORCID iD: Wenjin Wang https://orcid.org/0000-0002-5600-6589 ORCID iD: Xiqi Gao https://orcid.org/0000-0001-9107-6593 0059 |
Appears in Collections: | Dept of Computer Science Research Papers |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FullText.pdf | Copyright © 2023 Bin Jiang et al. Exclusive licensee Beijing Institute of Technology Press. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY 4.0). | 2.57 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License