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Millimeter wave backhaul network interference management method based on optimum cooperative search algorithm

An interference management and backhaul network technology, applied to interference processing in wireless backhaul networks, in the field of interference management, it can solve problems such as research on management methods, and achieve the effects of reducing load, reducing interruption probability, and improving throughput

Active Publication Date: 2018-11-20
XIDIAN UNIV
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Problems solved by technology

However, at the current stage of research, no scholars have studied the management methods of this interference.

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  • Millimeter wave backhaul network interference management method based on optimum cooperative search algorithm
  • Millimeter wave backhaul network interference management method based on optimum cooperative search algorithm

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[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings.

[0021] The application scenario of the present invention is a backhaul network, which includes a backhaul link A→a from a macro base station A to a micro base station a; a backhaul link B→b from the interference source macro base station B to the original micro base station b and the interference source macro base station The backhaul link C→c from the station C to the original micro base station c. Let the signal-to-noise ratio threshold be μ t , if the signal-to-noise ratio of a backhaul link is lower than the threshold, the link is determined as a communication-limited link, and interference management needs to be performed to improve communication quality. Use γ to represent the interference generated when the interference source macro base sta...

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Abstract

The invention discloses a millimeter wave backhaul network interference management method based on an optimum cooperative search algorithm. The method is mainly used for solving the problem that in the prior art, different links working under the same sub-bandwidth interfere with each other. According to the realization scheme, all links working under the same sub-bandwidth are detected; when interfered links are discovered, interference of the interfered links is traversed; interference source links generating strong interference are found; signal to noise ratios of the interference source links are measured; the interference source links of which signal to noise ratios are smaller than a set threshold value are preferentially selected for cooperative communication; if the interference source links of which signal to noise ratios are smaller than the set threshold value do not exist, the interference source links of which signal to noise ratios are greater than the threshold value are preferentially selected for cooperative communication; and if strong interference sources are not found, transmission power of the interfered links is reduced, until all interfered links are eliminated, the interference link detection is stopped, and the interference management is finished. According to the method, network throughput is greatly improved, an interruption probability is reduced, and the method can be used for processing the interference in a wireless backhaul network.

Description

technical field [0001] The invention belongs to the field of communication technologies, and in particular relates to a method for managing interference, which can be used for interference processing in a wireless backhaul network. Background technique [0002] With the increase in the number of devices and data traffic in the communication system, spectrum resources are becoming increasingly scarce, which seriously hinders the further development of mobile communications. So far, the spectrum band in the microwave range is almost completely occupied, especially during the peak frequency period, and the data transmission is more congested. Although spectrum utilization can be improved through modern regulation and allocation, in order to meet future wireless communication needs, the available spectrum resources need to be expanded. Therefore, millimeter-wave communication is more suitable for mobile communication systems with a sharp increase in traffic in the future. [0...

Claims

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Application Information

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IPC IPC(8): H04B17/336H04B17/309H04L5/00H04W52/24
CPCH04B17/309H04B17/336H04L5/0035H04W52/243
Inventor 石嘉赵钟灵李赞齐佩汉关磊郝本建
Owner XIDIAN UNIV
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