Non-orthogonal access optimal decoding ranking uplink transmission time optimization method based on bisearch

Abstract

The present invention provides a non-orthogonal access optimal decoding ranking uplink transmission time optimization method based on bisearch. The method comprises the following steps of: (1) in a condition of giving decoding ranking [Pin]m, describing an optimization problem to a non-convexity optimization problem; (2) performing equivalent transformation of a (Pi-m) problem to a (P1-m-E) problem, and performing equivalent transformation of the (P1-m-E) problem to a (P2) problem, and proving a (P2-Sub) problem; (3) providing an algorithm P2-Algorithm based on bisearch, and optimizing the whole wireless resource consumption in a condition of giving an upload amount as shown in the description of an intelligent terminal; and (4) providing an algorithm OptOrder-Algorithm to find out an optimal decoding ranking, wherein an output result is global minimum whole wireless resource consumption and global optimal uplink transmission time. The non-orthogonal access optimal decoding ranking uplink transmission time optimization method improves the system transmission efficiency, saves the bandwidth resource and obtain better wireless network experience quality.

Description

technical field [0001] The invention belongs to the field of communication, and relates to a non-orthogonal access optimal decoding sorting uplink transmission time optimization method based on a binary search formula. 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 orde...

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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 binary search Optimal Decoding Sorting Uplink Transmission Time Optimization Method

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