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Maximum and minimum energy efficiency resource allocation method in wireless power supply large-scale MIMO network

A technology of wireless power supply and resource allocation, applied in radio transmission system, wireless communication, network topology, etc.

Active Publication Date: 2020-07-24
CHONGQING UNIV OF POSTS & TELECOMM
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  • Application Information

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Problems solved by technology

However, in the actual system, the influence of these two factors exists at the same time

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  • Maximum and minimum energy efficiency resource allocation method in wireless power supply large-scale MIMO network
  • Maximum and minimum energy efficiency resource allocation method in wireless power supply large-scale MIMO network
  • Maximum and minimum energy efficiency resource allocation method in wireless power supply large-scale MIMO network

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Embodiment Construction

[0063] 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.

[0064] The technical scheme that the present invention solves the problems of the technologies described above is:

[0065] Figure 7 A resource allocation method for maximizing energy efficiency of a massive MIMO system based on wireless energy transmission under the condition of Max-min fairness is disclosed. It includes the following steps:

[0066] Step 1: Calculate the feasibility of the problem, which is guaranteed to have a feasible solution in the constraints of the optimization problem;

[0067] Step 2: Using the lemma that the optimal total power of the power beacon is equal to the upper limit of the maximum power, rewrite the objective function and constraints, and introduce an auxiliary vari...

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Abstract

The invention requests to protect a resource allocation method for energy efficiency optimization of a wireless power supply large-scale MIMO network. According to the invention, a model for maximizing the minimum energy efficiency of the energy efficiency based on the wireless power supply large-scale MIMO network is established; the fairness among SNs (sensor nodes) is also considered under thecondition that the QoS (quality of service) of a user is met, a non-convex optimization problem, namely an original problem, is equivalent to a convex optimization problem through a variable replacement method, an effective resource allocation strategy is proposed on the basis, and calculation is carried out by using convex optimization methods such as an interior point method and the like. According to the method, under the constraint of guaranteeing the QoS of the sensor nodes, the algorithm has polynomial complexity, and meanwhile the global energy efficiency and the global energy consumption of the system can be well balanced.

Description

technical field [0001] The invention belongs to the field of resource allocation in a large-scale MIMO system, in particular, a resource allocation method of joint power and time under the condition of satisfying QoS in a large-scale MIMO network based on wireless power supply. Background technique [0002] With the rapid development of communication technology, more and more people pay attention to wireless power transfer (WPT). WPT technology can be applied to low-power Internet of Things (IoT) devices, sensor networks and other extreme conditions, such as underwater, desert, human body network, etc., where it is inconvenient to use wired chargers to charge or replace batteries. On the other hand, in order to further improve the transmission distance and efficiency of the WPT, the WPT adopts a large number of Multiple Input Multiple Output (MIMO) technologies. Massive multiple-input multiple-output (MIMO) improves the energy transfer efficiency of WPT systems by transmitt...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0426H04B7/0452H04W72/04H04W84/18
CPCH04B7/0426H04B7/0452H04W72/0473H04W84/18
Inventor 王正强蒲秋羽黄坤豪多滨樊自甫万晓榆
Owner CHONGQING UNIV OF POSTS & TELECOMM
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