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Time slot channel allocation method based on maximum matching in industrial wireless network

An industrial wireless network, time slot channel allocation technology, applied in wireless communication, advanced technology, electrical components and other directions, can solve the problem of channel resource waste, limit the rationality of communication resource scheduling and allocation, etc., to achieve network stability and long-term reliability. Running, less deterministic effects

Active Publication Date: 2014-10-08
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] In the field of industrial wireless communication, the traditional slot-based scheduling method often only considers slot-based scheduling on a single channel during the research process, directly avoiding the issue of channel resource scheduling, or channel resource The scheduling process is idealized, which causes a waste of channel resources to a certain extent and limits the rationality of scheduling and allocation of communication resources in the network

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  • Time slot channel allocation method based on maximum matching in industrial wireless network
  • Time slot channel allocation method based on maximum matching in industrial wireless network
  • Time slot channel allocation method based on maximum matching in industrial wireless network

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Embodiment Construction

[0031] A non-limiting embodiment is given below in conjunction with the accompanying drawings to further illustrate the present invention.

[0032] refer to Figure 1-6 As shown, the overall technical solution of the present invention is as follows. Each node device in the network remains closed before being powered on. After the coordinator is powered on, the network parameters are first initialized to form a new PAN network. The network physical connection diagram is empty. The flow rate of each node is 0.

[0033] (1) The network is initialized, and the specified time slot starts from zero, that is, k=0; the scheduling table is initialized, that is, part=0; (2) q 0 (k) represents the total flow number in the master node PAN coordinator converged from other leaf nodes in the network until the k time slot on the slotframe frame, and Q represents the total flow number in the network. when q 0When (k)≠Q, the traffic number of the master node in the k-slot network is not the ...

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Abstract

The invention discloses a time slot channel allocation method based on maximum matching in an industrial wireless network. According to the method, a maximum matching algorithm is used for allocating time slot resources in the network, so that the data traffic in a unit time slot in the network is improved, and the hibernation time of nodes is guaranteed. A vertex coloring algorithm is used for allocating the channel resources in the network, and the interference problem in the network is solved. The two allocation methods are integrated to establish a dispatch table for a communication network, dispatching management for node behaviors in the network is achieved, the hibernation time of the nodes is increased, node energy is saved while the certainty and the reliability of time slots are guaranteed, and the life cycle of the network is prolonged.

Description

technical field [0001] The invention belongs to the field of industrial wireless communication, and in particular relates to a method for realizing time slot channel allocation based on maximum matching in an industrial wireless network. Background technique [0002] In recent years, the research on related technologies in the field of industrial wireless communication has received extensive attention from academia and industry, and has achieved rapid development. Compared with traditional wired networks, industrial wireless communication networks have many realistic constraints due to their special application scenarios, such as sensor node energy limitations, communication capability limitations, and computing and storage capability limitations. The reasonable scheduling and allocation of communication resources in industrial wireless communication networks has become an important research content in this field. [0003] In an industrial wireless communication network, co...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCY02D30/70
Inventor 王恒王平夏枢洋刘锋
Owner CHONGQING UNIV OF POSTS & TELECOMM
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