Research on 5G Video Security Communication Technology Based on Massive MIMO

2021 ◽  
Vol 14 ◽  
Author(s):  
Guozheng Li ◽  
Heling Jiang ◽  
Mohammad Asif Ikbal
Keyword(s):  
Mobile Communication ◽  
Massive Mimo ◽  
Large Scale ◽  
Multipath Fading ◽  
Wireless Channel ◽  
Accurate Estimation ◽  
Security Level ◽  
5G Mobile Communication ◽  
Mimo Technology ◽  
Directional Modulation

Background: To study a large number of classified and sensitive information transmission security issues brought by 5G mobile communication system. Methods: In this paper, the principle of beamforming and its shortcomings are introduced by combining the large-scale MIMO technology and directional modulation technology. The directional modulation technology based on antenna subset selection and a hybrid array is introduced to realize the safe transmission target. The results show that large-scale MIMO technology has become a key technology of 5G mobile communication. Still the factors such as multipath fading in the actual wireless channel have not been fully considered, and the accurate estimation error of channel state information (CSI) will affect the ideal security level it can achieve. Results: The combined application of massive MIMO technology and directional modulation technology in the 5G system brings security to its communication. Conclusion : Directional modulation technology based on signal modulation has become an important research point of the 5G system because it does not need to consider the eavesdropper's computing power and can achieve the purpose of safe transmission by disturbing the signal constellation in an unexpected direction.

scholarly journals Research on 5G Millimeter Wave Channel Estimation Algorithm

2019 ◽  
pp. 74-77
Author(s):  
Xu Shuang
Keyword(s):  
Channel Estimation ◽  
Millimeter Wave ◽  
Massive Mimo ◽  
Large Scale ◽  
Low Frequency ◽  
Estimation Algorithm ◽  
Simulation Research ◽  
Wave Technology ◽  
Wave Channel ◽  
Mimo Technology

With the explosive growth in the number of communication users and the huge demand for data from users, Limited low-frequency resources have been far from being satisfied by users. The combination of Massive MIMO technology and millimeter-wave technology has brought new hope to users. In this paper, several basic algorithms are placed under the millimeter wave large-scale antenna channel for simulation research.

scholarly journals Propagation Model in Indoor and Outdoor for the LTE Communications

2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Sun-Kuk Noh ◽  
DongYou Choi
Keyword(s):  
Mobile Communication ◽  
Mobile Communications ◽  
Communication Systems ◽  
Large Scale ◽  
Propagation Model ◽  
Time Rate ◽  
Propagation Models ◽  
5G Mobile Communication ◽  
Time Changes ◽  
Indoor And Outdoor

Rapidly rising demand for radio communication and the explosion in the number of mobile communications service subscribers have led to the need for optimization in the development of fifth-generation (5G) mobile communication systems. Previous studies on the development of propagation models considering a propagation environment in the existing microwave band have been mainly focused on analyzing the propagation characteristics with regard to large-scale factors such as path losses, delay propagation, and angle diffusions. In this paper, we investigated the concept of spatial and time changes ratios in the measurement of wave propagations and measured RSRP of Long Term Evolution (LTE) signals at three locations considering the time rate of 1% and 50%. We confirmed the concept of spatial and time changes rate based on the results of analyzing the signal data measured and proposed the propagation models 1 and 2 in microcell downtown. The forecast results using proposed models 1 and 2 were better than the COST231 model in both indoor and outdoor measured places. It was predicted between a time rate of 1% and 50% indoor within 400m and outdoor within 200m. In the future, we will study the propagation model of 5G mobile communication as well as the current 4G communication using artificial intelligence technology.

scholarly journals Survey on Massive MIMO: Technology, Challenges, Opportunities and Benefits

YMER Digital ◽  
2021 ◽  
Vol 20 (11) ◽  
pp. 271-282
Author(s):  
Karthik Kumar Vaigandla ◽  
◽  
Dr.N Venu ◽  
Keyword(s):  
Mobile Communication ◽  
Massive Mimo ◽  
Mimo System ◽  
Communication Technologies ◽  
Wireless Access ◽  
Beam Forming ◽  
Spectrum Utilization ◽  
Simple Processing ◽  
Linear Algorithms ◽  
Mimo Technology

Wireless communication technologies have been studied and explored in response to the global shortage of bandwidth in the field of wireless access. Next-generation networks will be enabled by massive MIMO. Using relatively simple processing, it provides high spectral and energy efficiency by combining antennas at the receiver and transmitter. This paper discusses enabling technologies, benefits, and opportunities associated with massive MIMO, and all the fundamental challenges. Global enterprises, research institutions, and universities have focused on researching the 5G mobile communication network. Massive MIMO technologies will utilize simpler and linear algorithms for beam forming and decoding. As part of future 5G, massive MIMO technology will be used to increase the efficiency of spectrum utilization and channel capacity. The paper then summarizes the technologies that are used in massive MIMO system, including channel estimation, pre-coding, and signal detection.

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