Dynamic competition window adjustment method, device and equipment based on stochastic game theory

A technology of competition window and theory, applied in the field of dynamic competition window adjustment based on stochastic game theory, can solve the problems of inaccurate adjustment, large wireless application transmission delay, and inability to further improve throughput, etc.

Active Publication Date: 2020-01-03
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] With the existing channel access mechanism, when the queue length of the eNB base station is long, it is impossible to dynamically adjust the contention window size to reduce the waiting time for data transmission, which will lead to excessive transmission delay of wireless applications; at the same time, the eNB only adjusts the contention window according to its own transmission conditions The size and adjustment are not accurate, and cannot further improve its own throughput

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  • Dynamic competition window adjustment method, device and equipment based on stochastic game theory
  • Dynamic competition window adjustment method, device and equipment based on stochastic game theory
  • Dynamic competition window adjustment method, device and equipment based on stochastic game theory

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] In order to dynamically adjust the size of the contention window according to the length of the data packet queue in the case of environmental changes, and reduce the waiting time for data transmission when the queue length of the eNB base station is long, the embodiment of the present invention provides a method based on stochastic game theory The dynamic contention window adjustment method, device and equipment of the present invention wi...

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Abstract

The embodiment of the present invention provides a dynamic competition window adjustment method, device and equipment based on stochastic game theory. The method includes: transmitting data packets and initializing channel access parameters; the channel access parameters include: contention window size value , the backoff counter size value and the contention window transmission probability matrix; count the queue length of the data packet, update the channel access parameter according to the queue length of the data packet, and obtain the updated channel access parameter; according to the random game In theory, the updated channel access parameters are repeatedly updated, the contention window transmission probability matrix is ​​adjusted, and when the transmission probability matrix converges to a preset threshold, an optimal contention window transmission probability matrix is ​​obtained. Through the dynamic contention window adjustment method based on stochastic game theory provided by the embodiment of the present invention, the size of the contention window can be dynamically adjusted according to the length of the data packet queue when the environment changes.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a dynamic competition window adjustment method, device and equipment based on stochastic game theory. Background technique [0002] In recent years, with the popularity of mobile terminal equipment, the traffic carried by the cellular mobile network has also increased significantly. In order to meet the diverse service requirements of users, cellular mobile networks need more spectrum resources to adapt to the rapid growth of mobile network traffic. The frequency resources in the licensed frequency band can no longer meet the diverse business needs of users. Operators have gradually begun to use unlicensed frequency bands to complete auxiliary access to meet the growing business volume. Licensed Assisted Access (LAA for short) network provides a good way for operators to use unlicensed frequency bands. In order to ensure the fair coexistence of LAA and oth...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L12/807H04W74/08H04L47/27
CPCH04L47/27H04W74/0808
Inventor田辉闫晓婧秦城聂高峰
OwnerBEIJING UNIV OF POSTS & TELECOMM