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Intelligent distributed spectrum dynamic sharing method based on weighted interference

A spectrum dynamic and distributed technology, applied in electrical components, wireless communication, network planning, etc., can solve the problems of depending on the degree of interference and not reflecting the interference pattern, etc., achieve rapid convergence, improve spectrum sharing efficiency, and refine interference description Effect

Pending Publication Date: 2022-03-08
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

For multiple wireless access nodes (such as base stations or APs in wireless local area networks), the nodes can simultaneously accommodate multiple terminal accesses. However, the degree of interference between wireless access nodes depends on the actual distribution of terminals in space. That is to say, the interference relationship is not a simple 0-1 interference, but the specific number of affected terminals, and the above model cannot reflect the actual interference pattern

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  • Intelligent distributed spectrum dynamic sharing method based on weighted interference
  • Intelligent distributed spectrum dynamic sharing method based on weighted interference
  • Intelligent distributed spectrum dynamic sharing method based on weighted interference

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] In order to understand the technical solution of the present invention more clearly, some terms are briefly explained below.

[0038] (1) Wireless access node. A node that provides access to the network for wireless terminal nodes corresponds to a routing node in a wireless mesh network or an AP in a wireless local area network. The set of N wireless switching nodes is

[0039] (2) Wireless terminal n...

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Abstract

The invention provides an intelligent distributed spectrum dynamic sharing method based on weighted interference. The method comprises the following steps: S1, acquiring a potential interference wireless access node set detected and reported by a wireless terminal node; s2, respectively acquiring one-way potential weighted interference of other wireless access nodes on the wireless access node set based on the potential interference wireless access node set; s3, interacting respective one-way potential weighted interference with other wireless access nodes to obtain corresponding two-way potential weighted interference; s4, acquiring an interference wireless access node set detected and reported by the wireless terminal node; s5, acquiring actual weighted interference based on the bidirectional potential weighted interference and the interference wireless access node set; s6, updating a channel selection probability vector based on actual weighted interference; and S7, detecting that the spectrum environment does not change, and performing channel selection based on the updated channel selection probability vector. According to the invention, the mode that the terminal is actually interfered is reflected through multiplexing weighted interference, more refined interference description is realized, and the frequency spectrum sharing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of channel selection in wireless networks, in particular to an intelligent distributed frequency spectrum dynamic sharing method based on weighted interference. Background technique [0002] Considering the limited transmission power of wireless network nodes, the range of co-channel interference is usually limited. Therefore, the nodes inside the wireless network can significantly improve the efficiency of spectrum utilization through spatial frequency multiplexing. The key to spatial frequency reuse is to coordinate the frequency usage of nodes within the network, that is, spectrum sharing. Its goal is to minimize frequency conflicts between nodes and give full play to the characteristics of spatial reuse. Existing spectrum sharing methods can be generally divided into two categories: centralized management and distributed sharing. The centralized algorithm relies on a designated controller to allocate th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W16/10
CPCH04W16/14H04W16/10
Inventor 杜智勇汪西明陈嘉琦费长江徐坤蔡彪
Owner NAT UNIV OF DEFENSE TECH
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