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

Abstract

The invention relates to a non-orthogonal access uplink transmission time optimization method based on binary search. The method comprises steps that (1), I mobile users in total are under the coverage range of a base station, in the case that the service quality of the mobile users is satisfied, the uplink transmission time of the mobile users and the total energy consumption of all the mobile users are minimized, and an optimization problem is described as a non-convex optimization problem; (2), an ORRCM problem is equivalently converted to an ORRCM-E problem; and (3), the ORRCM-E problem isequivalently converted to a D1 problem, whether the D1 problem is feasible under the given value theta is determined, and a D2 problem is proposed; based on the binary search method, overall wirelessresource consumption (the uplink transmission time and the total energy consumption of all the mobile users) is optimized under the given uploading amount ( an expression described as in the specification) of the mobile users. The uplink transmission time and the total energy consumption of all the mobile users are minimized. The method is mainly advantaged in that 1, for the uplink as a whole, system transmission efficiency is greatly improved through the non-orthogonal access technology; 2, for the uplink as a whole, bandwidth resources are greatly saved through the non-orthogonal access technology; and 3, for the mobile users, the better wireless network experience quality is obtained through the 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 binary search formula. 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 based on bisection search that minimizes uplink transmission time and total energy consumption of all users. Transmission time o...

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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 based on bisection search that minimizes uplink transmission time and total energy consumption of all users. Transmission 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 based on binary search method

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