A generalized rate division multiple access method for multi-cell system

An access method, multi-cell multi-user technology, applied in the field of generalized rate division multiple access, to achieve the effect of improving system energy efficiency and EE
CN111314932BActive Publication Date: 2022-05-27SHANDONG NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG NORMAL UNIV
Publication Date
2022-05-27

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Abstract

Generalized Rate Division Multiple Access (G‑RSMA) technology has the potential to significantly improve the energy efficiency EE and spectral efficiency SE of wireless networks. In order to maximize the energy efficiency EE and spectral efficiency SE of the multi-cell MISO system, the present invention proposes the joint design of beamforming vector and rate allocation using G-RSMA technology, and establishes the method of simultaneously maximizing the energy efficiency EE and spectral efficiency SE Multi-objective optimization problems. The present invention transforms the proposed multi-objective optimization problem into a single-objective optimization problem to realize the EE-SE trade-off. By further studying the quasi-convex relationship between the energy efficiency EE and the spectral efficiency SE, it can be known that within any reachable spectral efficiency SE region Can get the maximum energy efficiency EE. The simulation results prove that under different system parameter settings, compared with the traditional multiple access technology, the system energy efficiency EE is improved under the ideal spectral efficiency SE.
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Description

technical field

[0001] The present invention relates to a generalized rate division multiple access (G-RSMA) method for multi-cell system, and belongs to the technical field of wireless communication of multi-cell MIMO system. Background technique

[0002] Global mobile data traffic is expected to reach 77 exabytes per month by 2022, with the rise of various data-intensive wireless applications and services such as multimedia, autonomous transportation, and virtual reality, according to a Cisco white paper. In order to support these wireless services with high data rate requirements, the energy consumption pressure of mobile communication systems is also increasing.

[0003] To meet the increasing traffic demands, various promising techniques have been proposed to improve the spectral efficiency SE of emerging fifth-generation (5G) mobile networks. In a multiple-input multiple-output wireless communication network, the base station configures an antenna array and performs p...

Claims

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