Non-orthogonal access uplink transmission time optimization method based on linear search

Abstract

A non-orthogonal access uplink transmission time optimization method based on linear search comprises the following steps: (1) on the basis of a total of I mobile users under the coverage of the basestation, providing a problem that minimizes the uplink transmission time of the mobile users and the total energy consumption of all the mobile users while satisfying the service quality of the mobileusers, wherein the optimization problem is described as a non-convex optimization problem; (2) equivalently converting the ORRCM problem to the ORRCM-E problem; and (3) solving the algorithm ORRCM-Algorithm of the D1 problem, and proposing a D2 problem in order to judge whether the D1 problem is feasible under the given theta value; and based on the linear search method, optimizing the overall wireless resource consumption in the case that the upload volume (FORMULA referred) of the mobile users is given. The invention minimizes the uplink transmission time and the total energy consumption ofall the mobile users. The technical effects of the invention are mainly as follows: 1, for the uplink as a whole, the non-orthogonal access technology is used to greatly improve the system transmission efficiency; 2, for the uplink as a whole, the non-orthogonal access technology is used to greatly save bandwidth resources; and 3, for mobile users, the non-orthogonal access technology is used toobtain a better experience quality of the wireless network.

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 linear search type. 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 multiple access technology to enable 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 large total energy consumption of all mobile users in the prior art, the present invention provides a non-orthogonal handover based on linear search that minimizes uplink transmission time and total energy consumption of all mobile users In ord...

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Problems solved by technology

[0003] In order to overcome the disadvantages of long uplink transmission time and large total energy consumption of all mobile users in the prior art, the present invention provides a non-orthogonal handover based on linear search that minimizes uplink transmission time and total energy consumption of all mobile users In order to optimize the uplink transmission time, the present invention aims at the difficulty that the uplink transmission time is too large, mainly considers the use of non-orthogonal access technology to transmit data, and studies a non-orthogonal access uplink transmission time based on linear search Optimization

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