Superspeed wireless local area network admission control method based on channel reservation

Abstract

The invention discloses a superspeed wireless local area network admission control method based on channel reservation. The method takes the fairness of service flows of the same type into account, namely, under the condition that the release degrees of the service flows of the same type are the same, the bandwidth is released according to a corresponding algorithm, a high channel utilization rate is achieved, and the overall HCDP of a system is reduced. Meanwhile, in order to distinguish a new service from a switch service, different release thresholds are set for bandwidth releasing, the threshold of the switch service is higher than that of the new service, then it is guaranteed that the switch service has a higher access priority compared with the new service, and finally it is ensured that more services are accepted on the premise that the existing service flows are normally transmitted.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to an admission control method of an ultra-high-speed wireless local area network based on channel reservation. Background technique [0002] Admission control plays a pivotal role in radio resource management. It is an important strategy to prevent system overload and ensure user QoS (Quality of Service, Quality of Service), and it has unusual significance for maintaining system stability and efficiency. In wireless networks, it is more and more challenging to implement admission control because it needs to reduce the loss probability of handover calls and the blocking probability of new calls, and at the same time meet the QoS requirements of different types of services. Radio admission control policy is the method used to provide admission decision for a newly arrived call. If the wireless network bandwidth resources are sufficient, then as many servic...

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Problems solved by technology

[0024] Some of the existing admission control methods are based on cost and revenue functions. The biggest difficulty of this type of admission control algorithm based on optimization problems is the design of revenue and cost functions, and the computational complexity is also very high, which limits this type of admission control algorithm. Applications in real networks; some are based on certain business scenarios, such as a certain VoIP service admission control algorithm adopted in the scenario where a large number of Internet calls occur, to achieve better VoIP services and improve system utilization It is precisely because of its strong pertinence that the use of this strategy is very small; there is also an admission control strategy based on multi-services, which releases bandwidth step by step according to the priority level of each service, although it can also achieve a good Access capability, but does not take into account the fairness between services

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