Resource joint allocation method based on energy efficiency maximization in NOMA portable communication system

Abstract

The invention discloses a resource joint allocation method based on energy efficiency maximization in a NOMA portable communication system, which comprises the following steps: 1) a base station sendsdata through a non-orthogonal multiple access technology to provide data service for a mobile user terminal; 2) the mobile subscribe terminal is provided with an information receiver and an energy receiver at the same time, and the information and the energy are received in a time switching mode; 3) the characteristics of the system is analyzed and the mathematical optimization problem based on the maximization of energy efficiency is established; 4) the optimization problem is analyzed and a two-layer iterative algorithm is designed to solve the optimal power and time slot joint allocation scheme. The method can not only guarantee the data rate of the mobile user terminal and the collection energy demand, but also maximize the total energy efficiency of the system, so as to optimize thesystem resource allocation and improve the resource utilization rate.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a resource joint allocation method based on energy efficiency maximization in a NOMA energy-carrying communication system, which belongs to the category of green communication. Background technique [0002] With the popularization and development of mobile communication, the increasing traffic demand has become one of the key issues that should be considered in the design of the 5th generation mobile communication system (5G). At the same time, the relationship between the huge power consumption required and the increasingly scarce resources contradictions cannot be ignored. Therefore, the 5G mobile communication system must take into account both large capacity and low consumption. [0003] The mobile communication network based on NOMA (Non-orthogonal Multiple Access, non-orthogonal multiple access) technology allows multiple mobile clients to share the same tim...

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Problems solved by technology

[0004] Most of the existing research focuses on the energy efficiency optimization of the NOMA system or the SWIPT system alone, or assumes that the SWIPT receivers in the system are the same so that the time slot allocation between each mobile client is also the same, which cannot be based on user From the perspective of practical application, this scheme needs to be further improved to improve the energy efficiency of the system

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