Unlicensed spectrum access and resource management method based on reconfigurable holographic metasurface
An unlicensed spectrum and resource management technology, applied in the direction of climate sustainability, sustainable communication technology, advanced technology, etc., can solve the problems of lack of unlicensed spectrum access and resource management methods, and achieve the effect of improving communication speed
Pending Publication Date: 2022-07-08
HANGZHOU FFEI TECH CO LTD
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[0005] In order to solve the problem that existing communication systems based on reconfigurable holographic metasurfaces lack unlicensed spectrum access and resource management methods, the present invention provides an unlicensed spectrum access and resource management method based on reconfigurable holographic metasurfaces , to model the communication system based on the reconfigurable holographic metasurface, design the unlicensed spectrum access scheme, and obtain the resource allocation scheme by establishing and solving the resource allocation problem
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[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only specific embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0032] Reconfigurable holographic metasurfaces (RHS) are composed of feeds, parallel-plate waveguides, and arrays of metamaterial radiating elements, such as figure 1 As shown in the figure, the feed source emits electromagnetic waves, and the electromagnetic waves propagate in the parallel-plate waveguide. During the propagation process, the metamaterial radiation unit is controlled by a plurality of PIN diodes. By adjusting the switching state of the PIN diodes corr...
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The invention discloses an unlicensed spectrum access and resource management method based on a reconfigurable holographic metasurface. The access method comprises the following steps: monitoring an unlicensed frequency band; when the idle channels exist, acquiring an idle channel set to carry out tth allocation scheduling on the resources to obtain a resource allocation scheduling result At; and performing information transmission by using the idle channel set according to the resource allocation scheduling result At. According to the invention, the holographic metasurface communication system is accessed to the unlicensed spectrum and the resource allocation mode is optimized, so that the communication rate, the energy efficiency and other system performances are improved.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to an unlicensed spectrum access and resource management method based on a reconfigurable holographic metasurface. Background technique [0002] Currently, in order to realize ubiquitous intelligent information network, the upcoming sixth generation (6G) wireless communication imposes stringent requirements on antenna technology, such as capacity enhancement and precise beam steering. Although widely used dish antennas and phased array antennas are capable of achieving these goals, they both have their own inherent shortcomings that seriously hinder their future development. Specifically, dish antennas require heavy and expensive beam steering machinery, while phased arrays are highly dependent on power amplifiers, consume large amounts of power, have complex phase-shifting circuits, and have numerous phase-shifters, especially in high-frequency bands. Therefore, to meet the d...
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IPC IPC(8): H04W72/04H04W72/12H04B7/0426H04L41/14
CPCH04W72/0453H04W72/1263H04B7/043H04L41/145Y02D30/70
Inventor 张浩波邓若琪张雨童
Owner HANGZHOU FFEI TECH CO LTD