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Access method of wireless local area network based on wheel-hugging degree

A technology of wireless local area network and access method, which is applied in the field of wireless local area network access based on round-robin scheduling, can solve unsatisfactory problems, and achieve the effects of increasing the total number of users, meeting QoS requirements, and ensuring fairness

Inactive Publication Date: 2018-04-20
SOUTHEAST UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is not satisfactory for QoS-sensitive users with high latency requirements or large data volumes.

Method used

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  • Access method of wireless local area network based on wheel-hugging degree
  • Access method of wireless local area network based on wheel-hugging degree
  • Access method of wireless local area network based on wheel-hugging degree

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Embodiment Construction

[0019] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0020] The related concepts are described as follows:

[0021] Competition round: the smallest unit for users to compete for access. by figure 1 For example, each competition round eliminates 1, 0, 2, 0, 1, 1, 0 users respectively.

[0022] Signal pulse: A small segment of data flow used to notify other access users in the network that the current time slot channel is occupied, such as figure 1 shown in the grid box.

[0023] Round-robin schedule: The user performs carrier sense in the current competition round, and terminates when a signal pulse is detecte...

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Abstract

The invention discloses a wireless local area network access method based on wheel-hugging scheduling. The method is as follows: when a user tries to access a wireless channel, he will select a suitable priority access according to his own service QoS requirements, and the high-priority user will be in the first place. A round-robin schedule is implemented in a competition round, and low-priority users start to compete immediately in the first competition round; users who win in the previous competition round enter the next round and continue to participate in the competition until they are eliminated or win consecutively to the maximum In the competition round, the eliminated users directly exit the competition elimination process, and the final winning users access the channel. This method effectively solves the problem of a large number of users accessing WLANs through a multi-round competitive elimination process. At the same time, the round-robin scheduling method ensures that high-priority users have a high probability of successfully accessing the channel, and the same-priority users. Fairness is also guaranteed.

Description

technical field [0001] The invention belongs to the field of media access in communication technology, and relates to a method for accessing a wireless local area network based on a shift schedule, which can be used for user access in the wireless local area network. Background technique [0002] In a distributed wireless local area network, user classification is the main method to provide quality of service (QoS, Quality of Service) guarantee. Users are divided into different priorities according to their business needs. Compared with low priority users, high priority users Users occupy more channel resources. The IEEE 802.11 DCF protocol is a commonly used access protocol in wireless local area networks. It uses the binary exponential backoff method to solve the continuous collision problem between access users. There are several methods to apply the classification idea to the IEEE802.11 DCF protocol: 1) Based on Backoff window grading methods, including initial window g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/06
Inventor 沈连丰茆意伟夏玮玮胡静宋铁成
Owner SOUTHEAST UNIV
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