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A new wireless self-networking dual-frequency hierarchical routing method

A wireless ad-hoc network and hierarchical routing technology, applied in wireless communication, network topology, advanced technology, etc., can solve the problem of finding no route to the destination node, and achieve the effect of increasing capacity, speeding up speed, and reducing interference

Inactive Publication Date: 2008-09-10
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, it is possible to find no route to the destination node using the path-finding method described above.

Method used

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  • A new wireless self-networking dual-frequency hierarchical routing method
  • A new wireless self-networking dual-frequency hierarchical routing method
  • A new wireless self-networking dual-frequency hierarchical routing method

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Embodiment Construction

[0021] The hardware support required by the present invention is that the nodes need to be equipped with two wireless transceiver devices with different communication frequency bands and adjustable transmission power. like figure 1 As shown, the method consists of six steps: establishing network structure, maintaining hierarchical structure, finding transmission route, maintaining transmission route, controlling route error and reestablishing route. Wherein, the step of establishing a network structure includes two steps of establishing a low-level network structure and establishing a high-level network structure, and the step of finding a transmission route includes two methods of single-frequency hierarchical routing and dual-frequency hierarchical routing.

[0022] 1) Steps to establish a network structure

[0023] According to the network topology, the network is divided into several clusters by using the cluster head election scheme to form cluster heads, common nodes an...

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Abstract

The invention provides a novel wireless ad hoc network dual-frequency hierarchical routing method which can support fast and reliable routing construction and data transmission among nodes in a large-sized wireless ad hoc network, reduce interference during wireless transmission and further improve network capacity. The technical proposal of the invention is that: respective advantages and disadvantages of traditional single frequency hierarchical routing and multi frequency hierarchical routing are fully combined to put forward the novel dual-frequency hierarchical routing method and the method is characterized in that the method comprises the following steps of network structure construction, hierarchical structure maintenance, transmission routing searching, transmission routing maintenance, routing error control and reconstruction of routing, wherein, the step of network structure construction also comprises construction of low level network structure and construction of high level network structure and the step of transmission routing searching comprises two modes, namely, single frequency hierarchical routing and dual-frequency hierarchical routing.

Description

technical field [0001] The invention belongs to the field of wireless ad hoc network communication, and is a new wireless ad hoc network that can support rapid and reliable routing and data transmission between nodes in a large-scale network, reduce interference in wireless transmission, and further improve network capacity. The network dual-frequency hierarchical routing method is especially suitable for the battlefield communication environment with heterogeneous communication units, coordination of each communication unit, and three-dimensional space joint operations. Background technique [0002] Wireless ad hoc networks generally have two structures: flat structure and hierarchical structure. The network with a flat structure is relatively simple, and all nodes in the network have equal functions and status. In principle, there are no bottleneck nodes, and the network is relatively robust. However, the biggest disadvantage of the planar structure is that the network sc...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04W40/02H04W84/18
CPCY02D30/70
Inventor 李旭惠博刘海霞
Owner BEIJING JIAOTONG UNIV
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