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vhf, uhf segment fusion intelligent ad hoc network method

An ad hoc network and intelligent technology, applied in network data management, wireless communication, broadcast service distribution, etc., can solve the problems of low channel attenuation, long transmission distance, low data rate, etc., to avoid channel conflicts, reduce the number of forwarding, The effect of increasing the proportion of data

Active Publication Date: 2021-12-28
上海微波技术研究所(中国电子科技集团公司第五十研究所)
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Problems solved by technology

Due to the high bandwidth of the UHF frequency band, the transmission rate is fast, but the channel attenuation is serious; the channel attenuation of the VHF frequency band is low, the transmission distance is long, and the anti-electromagnetic interference ability is strong, but the data rate is low, so the UHF band is used for data services; the VHF band is used for network control. Information transfer

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  • vhf, uhf segment fusion intelligent ad hoc network method
  • vhf, uhf segment fusion intelligent ad hoc network method
  • vhf, uhf segment fusion intelligent ad hoc network method

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Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0036] Such as Figure 1 to Figure 5 Shown, according to a kind of VHF provided by the present invention, UHF section fusion intelligent ad hoc network method, comprises the steps:

[0037] Step 1: Central node broadcasts time slot allocation.

[0038] Step 2: The subnetwork node performs local spectrum sensing.

[0039] Step 3: The subnetwork node broadcasts the hello message in its own time slot using the fixed-frequency UHF segment according to the time slot allocation.

[0040] Step 4: The subnet...

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Abstract

The invention provides a VHF and UHF fusion intelligent ad-hoc network method. The start-up node actively initiates network control broadcast to become a networking node; according to the time slot allocation of the networking node broadcast, the subnet node performs neighbor discovery in the UHF segment, and Reply the neighbor list to the networking nodes through the VHF frequency band, and the networking nodes establish the entire network routing; instead of the networking nodes, the central node periodically releases the neighbor list maintenance time slot, and updates the routing table due to the location movement of each node. Routing changes; the center node is recommended and selected on the basis of the entire network routing formed; the center node calculates the spectrum allocation map that meets the data transmission requirements to the greatest extent. The present invention avoids "flooding" forwarding and channel conflicts by quickly establishing a routing table for the entire network and centrally allocates data requirements, thereby improving network efficiency. The invention uses an independent routing channel to increase the data ratio of the UHF channel and increase the actual user rate.

Description

technical field [0001] The invention relates to the field of ad hoc network radio stations, in particular to an intelligent ad hoc network method for integrating VHF and UHF segments. Background technique [0002] In wireless ad hoc network applications, due to the frequent movement of nodes, the establishment and maintenance of routes is expensive, and on-demand routing algorithms are often used, and it is difficult for a single node to obtain the entire network route. In practical applications, the UHF frequency band is often used to achieve high-speed transmission, and the transmission distance is relatively short. This leads to the need for multi-hop forwarding for communication with ad hoc networks with large coverage and many subnet nodes. [0003] In the active UHF frequency band ad hoc network, the network node will forward the data or routing request for the destination node other than itself during multi-hop communication. The total number of times the same piece o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W8/00H04W40/02H04W40/24H04W72/04
CPCH04W4/06H04W8/005H04W40/02H04W40/246H04W40/248H04W72/0446H04W72/0453
Inventor 张心宇郇存宏
Owner 上海微波技术研究所(中国电子科技集团公司第五十研究所)
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