Resource allocation method based on two-way interference graph in ultra-dense heterogeneous network system
A resource allocation and ultra-intensive technology, which is applied in the field of resource allocation based on two-way interference graphs, can solve the problems of not considering the characteristics of dense deployment scenarios, interference, and high computational complexity, so as to improve actual throughput, reduce computational complexity and signal cost effect
Active Publication Date: 2021-05-07
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
When the multiplexing mode is used, the small cell base station and the macro base station will allocate the same spectrum resources to provide services for their respective users, and there will be interference problems
There are also literatures that use a game model based on distance to construct interference graphs to study resource allocation. The author uses a heuristic algorithm to solve the problem, so more iterations are needed to reach the Nash equilibrium
[0004] The algorithms described in the above-mentioned various existing documents all have the disadvantages of not considering the characteristics of dense deployment scenarios and high computational complexity
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[0060] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0061] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...
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The invention provides a resource allocation method based on a two-way interference graph in an ultra-dense heterogeneous network system. The method includes: in an ultra-dense heterogeneous network system, all SUEs are respectively connected to a unique small cell base station, and each small cell base station is connected to only one SUE user, and the resource occupied by each CUE represents the resource that needs to be allocated to the SUE Spectrum resources; calculate the throughput of all CUEs and all SUEs respectively; use the potential game resource allocation algorithm based on the two-way interference graph to solve the allocation indicator matrix corresponding to the maximum total throughput of all CUEs and SUEs, according to the allocation indicator The matrix performs resource allocation of the SUE. The present invention proposes a method for allocating multiple resources for small cell users by using two-way interference graph information. This method is slightly better than the original game algorithm in terms of total system throughput without affecting the normal communication of the original CUE, and is obviously The actual throughput of edge users is improved, and the computational complexity and signaling overhead of the game process are greatly reduced by using the utility matrix and utility value update.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a resource allocation method based on a two-way interference graph in an ultra-dense heterogeneous network system. Background technique [0002] With the rapid development of mobile communication technology and the emergence of more and more smart devices, higher requirements are put forward for future cellular communication services. Based on this, the overall vision of 5G networks has been widely recognized, such as higher user experience rate, low latency and high reliability. In order to meet the requirements of these performance indicators, some literatures have proposed three major technologies that 5G can adopt: ultra-dense deployment, millimeter wave transmission, and large-scale antenna arrays. Among them, the ultra-dense deployment technology can significantly improve the degree of spatial reuse within the coverage area of the cell, thereby improving t...
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IPC IPC(8): H04W24/02H04W72/04
CPCH04W24/02H04W72/0453H04W72/53
Inventor 尼俊红陈莉佳史上乐
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)