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Adaptive Access Mechanism Based on Network State Detection in Multi-rate IEEE802.11 WLANs

  • Jianjun Lei
  • Shengjie Peng
  • Yu Dai
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 765)

Abstract

This paper addresses the problem of channel access in multi-rates IEEE802.11 WLANs (Wireless Local Area Networks). Unlike some current solutions for performance anomaly only aiming to the saturated network, we propose a fine-grain channel access mechanism that takes the saturated and unsaturated network into account simultaneously. Meanwhile, we present a model to detect the network state under different network density. This novel framework can detect the network state by collision rate for the dynamic network scenarios and perform more efficient channel access by combining the legacy IEEE802.11 DCF (Distributed Coordination Function) and airtime fairness algorithm. The simulations show that our algorithm can improve the aggregate throughput and reduce the collision rate during channel access compared to the legacy DCF mechanism.

Keywords

WLANs Network state detection Performance anomaly Airtime fairness 

Notes

Acknowledgments

This research is supported by the National Science Foundation of China (61602073) and Scientific and Technological Research Program of Chongqing Municipal Education Commission (KJ1400429).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Computer Science and TechnologyChongqing University of Posts and TelecommunicationsChongqingChina

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