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A non-orthogonal access optimal decoding sorting uplink transmission time optimization method

A transmission time and optimization method technology, applied in the field of communication, can solve problems such as excessive uplink transmission time, large energy consumption of smart terminals, and long uplink transmission time, so as to save bandwidth resources, high-quality wireless network experience quality, and improve system transmission efficiency 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 disadvantages of long uplink transmission time and high energy consumption of smart terminals in the prior art, the present invention provides a non-orthogonal access optimal solution based on bisection search that minimizes uplink transmission time and total energy consumption of smart terminals. Optimized decoding and sorting uplink 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 based on linear search Uplink Transmission Time Optimization Method for Optimal Decoding Sorting

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  • A non-orthogonal access optimal decoding sorting uplink transmission time optimization method
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  • A non-orthogonal access optimal decoding sorting uplink transmission time optimization method

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[0095] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0096] refer to figure 1 , figure 2 and image 3, a non-orthogonal access optimal decoding and sorting uplink transmission time optimization method based on linear search, the implementation of this method can make the uplink transmission time and the total energy of all smart terminals Minimize consumption and improve the wireless network experience quality of the entire system. The present invention is applied to wireless networks, such as figure 1 in the scene shown. Designing an optimization method for this problem includes the following steps:

[0097] (1) There is a total of 1 smart terminal under the coverage of the access hotspot, and the smart terminal uses a set means, that is, given a set of intelligent terminals There is I! A decoding sort, the smart terminal uses the non-orthogonal access technology to send data to the access hotspot a...

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Abstract

A non-orthogonal access optimal decoding sorting uplink transmission time optimization method based on linear search, comprising the following steps: (1) given a decoding sorting π m Under the condition of , the optimization problem is described as a non-convex optimization problem; (2) convert the (P1‑m) problem into a (P1‑m‑E) problem equivalently; It is a (P2) problem; a (P2‑Sub) problem is proposed; (3) an algorithm P2‑Algorithm based on linear search is proposed to optimize the overall wireless resource consumption when the upload volume of the smart terminal is given; (4) the algorithm OptOrder is proposed ‑Algorithm finds the optimal decoding order, and the output results are the global minimum overall wireless resource consumption and the global optimal uplink transmission time. The present invention improves system transmission efficiency, saves bandwidth resources, and obtains better wireless network experience quality.

Description

technical field [0001] The invention belongs to the communication field, and relates to a non-orthogonal access optimal decoding sorting uplink transmission time optimization method based on a linear search type. Background technique [0002] Large-scale connectivity adapted to Internet of Things (IoT) applications has been regarded as an important goal of future 5G cellular systems. Non-orthogonal Multiple Access (NOMA) enables a group of smart terminals (Smart Terminal, ST) to simultaneously share the same spectrum channel for transmission, providing an effective way to achieve the goal of spectrum-efficient data transmission. Methods. We consider uplink transmission in a wireless network, where a smart terminal (e.g. a smart watch) sends its data to an access hotspot using NOMA technology. We aim to minimize the overall radio resource consumption, including uplink transmission time and total uplink transmission energy. Contents of the invention [0003] In order to o...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W52/18
CPCH04W52/0209H04W52/0212H04W52/18Y02D30/70
Inventor 吴远倪克杰杨晓维张成钱丽萍黄亮
Owner ZHEJIANG UNIV OF TECH
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