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A power control method based on energy efficiency in a full-duplex non-orthogonal multiple access system

A non-orthogonal multiple access, access system technology, applied in the field of power control based on energy efficiency, can solve problems such as few system energy efficiency research, achieve the effect of strong practicability and feasibility, and improve energy efficiency

Active Publication Date: 2021-07-13
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, for the full-duplex NOMA system, the main focus is on optimizing system performance indicators such as power consumption, system capacity, and speed, and there are few studies on the energy efficiency of the system.

Method used

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  • A power control method based on energy efficiency in a full-duplex non-orthogonal multiple access system
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  • A power control method based on energy efficiency in a full-duplex non-orthogonal multiple access system

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Embodiment Construction

[0084] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0085] The technical scheme that the present invention solves the problems of the technologies described above is:

[0086] Technical scheme of the present invention is as follows:

[0087] (1) In the full-duplex non-orthogonal multiple access system, the energy efficiency optimization problem is defined as: to maximize the energy efficiency of the NOMA communication system while ensuring the quality of service including uplink users and downlink users, by controlling uplink users and The method of transmitting power of the base station, the optimization problem is described as problem P1:

[0088] P1:

[0089] in:

[0090]

[0091] limited by:

[0092]

[0093]

[0094]

[0095] ...

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Abstract

The present invention is an energy-efficiency-based power control method for a full-duplex non-orthogonal multiple access system, which belongs to the field of network power control, and is aimed at a unit that uses a full-duplex base station to provide services for multiple half-duplex downlink users and uplink users at the same time An optimization model is established for the energy efficiency of carrier non-orthogonal multiple access systems, and then fractional programming and an iterative algorithm based on Lagrangian multipliers are used to allocate transmit power to maximize system energy efficiency. The result obtained by the invention improves the energy efficiency of the full-duplex NOMA system, and reduces the computational complexity to a certain extent.

Description

technical field [0001] The invention belongs to the field of non-orthogonal multiple access communication, in particular to an energy efficiency-based power control method with service quality guarantee in full-duplex non-orthogonal multiple access. Background technique [0002] In the latest 5G new multiple access technology research, non-orthogonal multiple access technology based on power domain multiplexing is a promising technology for improving system capacity, frequency efficiency, and energy efficiency in 5G networks. Compared with the traditional OMA technology, the NOMA technology has the following advantages: higher spectral efficiency, higher cell edge throughput, lower transmission waiting time, enhanced user fairness, and support for more user connections. [0003] However, most of NOMA's work to date has been limited to half-duplex operation. Both NOMA and full-duplex technology improve spectrum efficiency. A potential application of full-duplex transceivers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/34H04W52/14H04W52/24
CPCH04W52/14H04W52/243H04W52/34
Inventor 王正强孟宪辉樊自甫成蕖万晓榆
Owner CHONGQING UNIV OF POSTS & TELECOMM