Non-orthogonal multiple access authentication system and parameter optimization method based on shared authentication tags

Abstract

The present disclosure provides a parameter optimization method of a non-orthogonal multiple access authentication system based on a shared authentication label, which includes: a base station transmits a first carrier signal including an authentication label and multiple user information, and the first carrier signal is obtained through a wireless fading channel The second carrier signal: Multiple UEs respectively receive and obtain channel estimation and preset target user information based on the second carrier signal to obtain test statistics. Based on channel estimation, multiple UEs obtain corresponding SINR and then obtain interruption Probability, based on test statistics and hypothesis test condition detection probability; the base station receives and optimizes the power allocation factor of the authentication tag and the power allocation factor of each user information based on the feedback signals transmitted by multiple user terminals.

Description

technical field [0001] The present disclosure relates to a non-orthogonal multiple access authentication system based on a shared authentication label and a parameter optimization method. Background technique [0002] Non-Orthogonal Multiple Access (NOMA, Non-Orthogonal Multiple Access) technology is a key technology in the new radio (NR) access technology of the fifth generation (5G) wireless network. NOMA technology can achieve large-scale user access, meet the sharply increasing demand for heterogeneous data traffic, and provide high bandwidth efficiency and ultra-low latency services. In addition, NOMA has been included in the 5G NR standard, the 3rd Generation Partnership Project Long Term Evolution Advanced (3GPP-LTE-A) standard, and the next-generation Universal Digital Television Standard (ATSC 3.0). The NOMA technology has excellent performance. Compared with the traditional Orthogonal Multiple Access (OMA) technology (such as Time Division Multiple Access (TDMA), ...

AI Technical Summary

Problems solved by technology

[0004] In the existing NOMA technology, security authentication is usually achieved through the traditional encryption technology in the upper layer; however, there are often three main problems in the NOMA system that hinder the implementation of security authentication

The first problem is that the security of the upper-layer encryption mechanism is established based on the assumption that the adversary has limited computing power; however, with the advancement of computing power and cryptanalysis algorithms, the assumption of computational limitations in cryptography is gradually broken

The second issue is one of efficiency, since various time-consuming tasks are unavoidable at the upper and physical layers (PHY) before the transmitter can be verified

The third issue involves compatibility issues, as wireless devices produced by different manufacturers vary, and a lack of understanding of different digital languages ​​and upper-level communication programs hinders large-scale connectivity in the NOMA system

In addition, in the existing NOMA system, there is also the problem of improving the fairness of services for each client

Images