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Wireless Personal Communications

, Volume 104, Issue 1, pp 37–55 | Cite as

A New Modified Dropping Function for Congested AQM Networks

  • Sanjeev PatelEmail author
  • Karmeshu
Article
  • 34 Downloads

Abstract

Active queue management schemes are used to reduce the number of dropped packets at the routers. Random early detection uses dropping probability which is calculated based on the average queue size. Further it is modified according to the value of the count indicating the number of unmarked packets that have arrived after a marked packet. The impact of random variable i.e. number of packets arrived after a marked packet over the dropping pattern is investigated. The proposed model achieves smooth dropping pattern which results in improvement of quality of service parameters. A new model for dropping probability is proposed with different dropping function. The effect of new dropping probability results in the increase of the throughput and reduction of the expected end-to-end delay. An important finding is that the choice of modified dropping function significantly affects the performance measures of the networks.

Keywords

Active queue management Random early detection Modified dropping probability End-to-end delay Throughput Loss-rate Traffic load Buffer size 

Notes

Acknowledgements

The author would like to thank Prof. Karmeshu for his useful suggestions and guidance. The help provided by him is highly acknowledged. It will not be possible to complete this paper without his support and time to time discussion with him. We are thankfull to the distinguished referee for their comments and suggestions.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringJaypee Institute of Information TechnologyNoidaIndia
  2. 2.School of Computer and Systems SciencesJawaharlal Nehru UniversityNew DelhiIndia

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