A method for optimizing the performance based on LAA and WIFI coexistence network

A performance, p-laa technology, applied in the field of communication, can solve the problems of LAA and WIFI time slot start time misalignment, performance analysis without asynchronous channel access characteristics, etc., to achieve the effect of improving performance

Active Publication Date: 2018-12-18
温州大学苍南研究院
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Problems solved by technology

[0006] However, the inventors have found that since the length of the delay period CCA of the LAA is variable, it may be inconsistent with the length of the WIFI delay period (Distributed Interframe Space, DIFS), which will easily cause the time slot start time of the LAA and WIFI in the LAA/W

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  • A method for optimizing the performance based on LAA and WIFI coexistence network
  • A method for optimizing the performance based on LAA and WIFI coexistence network
  • A method for optimizing the performance based on LAA and WIFI coexistence network

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[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] Such as figure 1 As shown, in the embodiment of the present invention, a method for optimizing network performance based on the coexistence of p-LAA and WIFI is proposed, and the method includes the following steps:

[0057] Step S1. Introduce the p persistence mechanism into the traditional LAA system to obtain the P-LAA system, and determine the coexistence network formed by the p-LAA system and the WIFI system, and further set the p-LAA system throughput and the WIFI system throughput. Fairness index F, the following formula (1):

[0058]

[0059] In formula (1), if S l represents the throughput of the p-LAA system, then S w Indicates the WIFI system throughput; conversely, if S l Indicates the WIFI system throughput, then S w Indicates the throu...

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Abstract

The invention provides a method for optimizing the performance based on LAA and WIFI coexistence network, including: introducing p-persistence mechanism into the traditional LAA system to obtain the P-LAA system and determining that p-LAA system and WIFI system form a coexistence network, and further setting the fairness index of p-LAA system throughput and wifi system throughput; comprehensivelyconsidering the total throughput and fairness of coexistence network formed by LAA system and WIFI system, introducing the same into the excitation function; transforming the excitation function intoan optimization problem and obtaining the optimal solution of p; according to the optimal solution of p, adjusting p-LAA system. By implementing the invention, the asynchronous channel access and thesynchronous channel access are simultaneously satisfied, the total throughput and the fairness of the coexistence network are comprehensively considered to make adaptive optimization adjustment, and the performance of the coexistence network is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for optimizing network performance based on the coexistence of p-LAA and WIFI. Background technique [0002] In recent years, the rapid growth of mobile communication devices and new services has caused the exponential growth of mobile data services. However, the rapidly growing demand for mobile data has also brought great challenges to communication operators. [0003] Applying LTE (Long Term Evolution) technology to unlicensed frequency bands has become an effective measure to deal with this challenge, and the fair and friendly coexistence of LTE and WIFI has become the focus of attention in unlicensed frequency bands. [0004] The LTE technology in the unlicensed frequency band proposed by 3GPP in the 13th edition is called LAA (Licensed Assisted Access), and there is another widely researched LTE technology in the unlicensed frequency band called LTE-U (LTE i...

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Application Information

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IPC IPC(8): H04W16/14H04W24/02H04W74/08
CPCH04W16/14H04W24/02H04W74/0808H04W74/0816H04W74/085Y02D30/70
Inventor 唐震洲周学胜胡倩施晓秋
Owner 温州大学苍南研究院
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