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A Non-Orthogonal Access Downlink Transmission Time Optimization Method Based on Linear Search

A transmission time and linear search technology, applied in the field of communication, can solve the problems of long downlink transmission time, large total energy consumption of the base station, long downlink transmission time, etc., to save bandwidth resources, improve system transmission efficiency, and high-quality wireless network experience quality Effect

Active Publication Date: 2021-05-18
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0003] In order to overcome the shortcomings of the prior art that the downlink transmission time is long and the total energy consumption of the base station is large, the present invention provides a non-orthogonal access downlink transmission time based on linear search that minimizes the downlink transmission time and the total energy consumption of the base station Optimization method, the present invention aims at the difficulty of excessive downlink transmission time, mainly considers the use of non-orthogonal access technology to transmit data, and studies a non-orthogonal access downlink transmission time optimization method based on linear search

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  • A Non-Orthogonal Access Downlink Transmission Time Optimization Method Based on Linear Search
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  • A Non-Orthogonal Access Downlink Transmission Time Optimization Method Based on Linear Search

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[0080] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0081] refer to figure 1 , a non-orthogonal access downlink transmission time optimization method based on linear search, the implementation of this method can minimize the downlink transmission time and the total energy consumption of the base station under the condition of ensuring that the base station sends and completes the data volume of all mobile users , improving the wireless network experience quality of the entire system. The present invention can be applied to wireless networks, such as figure 1 in the scene shown. The optimization method designed for the problem mainly includes the following steps:

[0082] (1) There are a total of 1 mobile users under the coverage of the base station, and the mobile users use the set Indicates that the base station uses non-orthogonal access technology to send data to mobile users at the same time, and the ...

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Abstract

A non-orthogonal access downlink transmission time optimization method based on a linear search formula, comprising the following steps: (1) there are 1 mobile users in total under the coverage of the base station, and a QoS that satisfies the mobile users is proposed, Minimize the downlink transmission time of the base station and the total energy consumption of the base station when the download amount of the mobile user is given; among them, the optimization problem is described as a non-convex optimization problem; (2) The DDRCM problem is equivalently transformed into DDRCM‑E problem, the DDRCM‑E problem is equivalently transformed into a P1 problem; (3) In order to judge whether the P1 problem is feasible under the given value of θ, a P2 problem is proposed; based on the linear search method, when the download volume of mobile users is given Downlink resource consumption is optimized. The invention minimizes the downlink transmission time and the total energy consumption of the base station.

Description

technical field [0001] The invention belongs to the communication field, and relates to a non-orthogonal access downlink 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. We aim at the transmission process of the data corresponding to the mobile user sent by the base station. We propose a non-orthogonal access downlink transmission time optimization method based on linear search. Contents of the invention [0003] In order to overcome the shortcomings of the prior art that the downlink transmission time is long and th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W72/04H04W24/02H04L1/00
CPCH04L1/0015H04L1/0018H04W24/02H04W52/0206H04W72/0446H04W72/0473Y02D30/70
Inventor 吴远张成倪克杰陈佳钱丽萍黄亮
Owner ZHEJIANG UNIV OF TECH
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