A dynamic channel allocation method for ofdma cellular networks

A dynamic channel allocation and cellular network technology, applied in data exchange network, transmission monitoring, digital transmission system, etc., can solve the problems of rising blocking rate, large calculation delay, large calculation amount, etc., and achieve the reduction of cell scale and channel scale , the effect of reducing the amount of calculation
CN108964812BActive Publication Date: 2020-10-09QIQIHAR UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QIQIHAR UNIVERSITY
Publication Date
2020-10-09

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Abstract

This patent proposes a channel allocation method for OFDMA cellular networks, which belongs to the technical field of mobile communication. The implementation steps are: (1) Color the cellular network with 3 colors, and find the channel demand numbers of the three-color cells adjacent to each other and the sum of the channel demand numbers is the largest; (2) According to the found 3-color cell The number of channels required by the cell, generate continuous OFDMA channels numbered from 1; (2) Use the generated OFDMA channel to allocate the first OFDMA channel for the cellular network; (3) If the first OFDMA channel allocation cannot satisfy all cells For the requirement of the number of channels, the hysteresis noise chaotic neural network is used for the second OFDMA channel allocation. This patent can effectively reduce the total number of required OFDMA channels and the calculation amount of dynamic channel allocation through two OFDMA channel allocations, thereby improving the utilization rate of OFDMA channel resources and ensuring the real-time performance of wireless mobile communications.
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Description

technical field

[0001] This patent designs a dynamic channel allocation method for OFDMA cellular networks, which belongs to the technical field of mobile communication. Background technique

[0002] Orthogonal Frequency Division Multiple Access (OFDMA) technology can divide spectrum resources into several mutually orthogonal channels, which has the advantages of anti-multipath fading, anti-interference and high utilization of spectrum resources, and has been widely used in 4G cellular In the mobile communication of the network, it has also become a candidate air interface technology for the next generation of mobile communication.

[0003] According to statistics, my country's current spectrum resource gap has reached 1553MHz. With the rapid growth of the number of mobile user terminals, the gap of spectrum resources will also become larger and larger. Therefore, maximizing the utilization of channel resources has always been a research hotspot in mobile communications. ...

Claims

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