A non-orthogonal access uplink transmission time optimization method based on particle swarm optimization

Abstract

A non-orthogonal access uplink transmission time optimization method based on the particle swarm optimization algorithm, comprising the following steps: (1) there are 1 mobile users in total under the coverage of the base station, and at the same time a quality of service that satisfies the mobile users is proposed, Minimize the uplink transmission time of mobile users and the total energy consumption of all mobile users. Among them, the optimization problem is described as a non-convex optimization problem; (2) the ORRCM problem is equivalently transformed into an ORRCM-E problem; (3) Based on the particle swarm optimization algorithm, the overall wireless network is optimized when the upload volume of mobile users is given. Resource consumption (uplink transmission time and total energy consumption of all mobile users). The invention provides a non-orthogonal access uplink transmission time optimization method based on particle swarm algorithm which minimizes uplink transmission time and total energy consumption of all mobile users. The technical effects of the present invention are mainly manifested in: 1. For the overall uplink, the use of non-orthogonal access technology greatly improves the system transmission efficiency; 2. For the overall uplink, the use of non-orthogonal access technology greatly saves bandwidth resources ; 3. For mobile users, better wireless network experience quality can be obtained through non-orthogonal access technology.

Description

technical field [0001] The invention belongs to the communication field, and relates to a non-orthogonal access uplink transmission time optimization method based on a particle swarm algorithm. Background technique [0002] The rapid development of mobile Internet services has caused enormous traffic pressure on the cellular wireless access network. Due to limited wireless resources, using non-orthogonal access technology to allow mobile users to share the same channel at the same time provides an effective method for wireless access to achieve ultra-high throughput and large-scale connections in the future 5G network. Contents of the invention [0003] In order to overcome the disadvantages of long uplink transmission time and high total energy consumption of all users in the prior art, the present invention provides a non-orthogonal access uplink transmission based on particle swarm optimization algorithm that minimizes uplink transmission time and total energy consumpti...

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Problems solved by technology

[0003] In order to overcome the disadvantages of long uplink transmission time and high total energy consumption of all users in the prior art, the present invention provides a non-orthogonal access uplink transmission based on particle swarm optimization algorithm that minimizes uplink transmission time and total energy consumption of all users Time optimization method, the present invention aims at the difficulty of excessive uplink transmission time, mainly considers the use of non-orthogonal access technology to transmit data, and studies a non-orthogonal access uplink transmission time optimization method based on particle swarm optimization

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