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Wireless network protocol performance modeling method

A wireless network protocol and modeling method technology, applied in the field of wireless network protocol performance modeling, can solve the problems that the communication simulation model cannot fully consider the packet reception rate, time correlation, space link correlation, and inaccurate simulation results. To achieve the effect of improving accuracy, reducing error and ensuring accuracy

Active Publication Date: 2018-09-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing communication simulation model cannot fully consider the packet collection rate, time correlation and space link correlation, resulting in inaccurate simulation results, and the purpose is to provide a wireless network protocol performance modeling method , to solve the above problem

Method used

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  • Wireless network protocol performance modeling method

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Experimental program
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Embodiment 1

[0034] Such as figure 1 As shown, a wireless network protocol performance modeling method of the present invention includes the following steps: S1: collecting transmission data, converting the packets received in the link into binary sequences; S2: dividing the received transmission data packets into several segments, and decompose the packets of each segment into d sets containing w packets, and obtain the expected number of transmissions aE on the anycast link and the expected number of transmissions bE on the broadcast link of each set as the original sequence aE and bE; S3: Obtain the packet reception rate PRR of each set according to the d sets and w packets in the set described in S2, and form the packet reception rate PRR of the d sets into a PRR tuple; S4: according to The PRR tuple described in S3 obtains a new sequence, and obtains aE and bE of the new sequence; S5: compares the aE of the original sequence with the new sequence, and compares the bE of the original s...

Embodiment 2

[0037] In this embodiment, on the basis of Embodiment 1, the difference threshold in step S5 is 15%-25%.

[0038] During the implementation of this embodiment, in order to accurately distinguish the difference between the new sequence and the original sequence, the difference threshold is selected as 15% to 25%, which can accurately and effectively reflect the difference between the new sequence and the original sequence, and the value range can be Further optimization to 20%.

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Abstract

The invention discloses a wireless network protocol performance modeling method. The method comprises the steps that transmission data is acquired, and packets received in a link are converted into abinary sequence; and the packets on the link in a time T are decomposed into a plurality of segments, each segment is decomposed into d sets each of which contains w packets, and the expected transmission number aE of each set on an anycast link and the expected transmission number bE of each set on a broadcast link are obtained to serve as aE and bE of the original sequence. According to the wireless network protocol performance modeling method, parameters are repeatedly adjusted to enable a model to reach optimal, model-generated data packets are compared with original data packets to checkthe feasibility of the model according to the quality of a wireless network and the performance of the link level, if the model-generated data packets have a great difference with the original data packets, the values of d and w are adjusted, the accuracy is guaranteed while the correlation among the packet receiving rate, the time correlation and the space link is fully considered, errors generated by existing model simulation are effectively reduced, and the accuracy of a simulation result is provided.

Description

technical field [0001] The invention relates to the field of wireless communication research, in particular to a wireless network protocol performance modeling method. Background technique [0002] In the field of communication, wireless network protocol modeling is a very important method for protocol design and performance testing. The Markov model is widely used in simulating network communication, but this model must be simulated without transmission errors, the Gilbert model is a probability model that can be used to simulate transmission distortion, and the hidden Markov model can control Transmission duration to simulate bursty link can be used to simulate network communication protocol. [0003] Taking the expected number of transmissions (E) as the protocol performance index, the expected number of transmissions can be divided into three types according to different protocols: unicast expected number of transmissions (uE), anycast expected number of transmissions (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/06
CPCH04W24/06
Inventor 赵志为闵革勇黄文杰杨明航高伟峰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA