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Optimization method for maximizing minimum user security and energy efficiency in large-scale mimo system based on swipt

A large-scale, user-friendly technology, applied in the field of safety and energy efficiency resource management, can solve problems such as ignoring safety and energy efficiency

Active Publication Date: 2022-03-22
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Through reading a large number of literatures, we can see that the existing literature mainly adopts the system security energy efficiency resource allocation method and the system security rate resource allocation method to maximize the system security energy efficiency, ignoring the security energy efficiency of the user in the worst case

Method used

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  • Optimization method for maximizing minimum user security and energy efficiency in large-scale mimo system based on swipt
  • Optimization method for maximizing minimum user security and energy efficiency in large-scale mimo system based on swipt
  • Optimization method for maximizing minimum user security and energy efficiency in large-scale mimo system based on swipt

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0025] The technical scheme that the present invention solves the problems of the technologies described above is:

[0026] This implementation case is a SWIPT-based massive MIMO system maximizing minimum user security energy efficiency optimization method.

[0027] The specific implementation cases are listed as follows:

[0028] In the first step, fix the BS transmit power P t and BS power allocation factor Update user power allocation factor ρ k . According to the objective function where the numerator in the objective function represents the secrecy rate of user k, that is, the achievable security rate of user k minus the rate of the eavesdropper, ( ) + =max{0,}, Indicates the reachable spee...

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Abstract

The present invention claims to protect a SWIPT-based massive MIMO system maximizing the minimum user security energy efficiency optimization method, including: initialization; judging whether the energy efficiency constraints are met according to the initialization energy efficiency, if the conditions are met, the optimal security energy efficiency is given, and the method ends; Otherwise, go to the next step to iteratively optimize the user power allocation factor. Iteratively optimize the BS power allocation factor. Iterative optimization of BS average transmit power. Finally, use the dichotomy method to iteratively search for security energy efficiency, and judge whether the maximum security energy efficiency function and the minimum security energy efficiency product constraint are met. If the condition is true, update the minimum security energy efficiency. Energy efficiency; if the condition is not satisfied, update the maximum safe energy efficiency, if the updated value satisfies the constraint condition, continue to iterate, otherwise output the minimum safe energy efficiency. The result obtained by the invention can obviously improve the resource utilization rate of system security, energy efficiency, and has strong practicability and feasibility.

Description

technical field [0001] The invention belongs to the technical field of Security Energy Efficiency (SEE) resource management, in particular to a resource allocation method for maximizing minimum user security energy efficiency in a massive multiple-input multiple-output (MIMO) system based on Simultaneous Wireless Information and Power Transmission (SWIPT). Background technique [0002] With the continuous acceleration of mobile Internet technology research and development, the broadcast characteristics of wireless information have seriously threatened the security of high-speed information transmission, and physical layer security has increasingly become the focus of research. At present, 5G mobile communication is mainly changing from the aspects of network security system architecture, networking technology and wireless transmission technology to improve the reachable rate and energy efficiency of mobile security communication. [0003] The traditional information security...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/03H04W72/04H04W72/08
CPCH04W72/0473H04W12/03H04W72/542Y02D30/70
Inventor 万晓榆杨晓霞王正强樊自甫张鸿佳
Owner CHONGQING UNIV OF POSTS & TELECOMM
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